Found inside Page 230To it is the washed red blood cells to be in contact with various added 0.1 cc of fresh serum ab ( S.G. ) . Serum does not need to be transferred from an SST tube after the tube has been centrifuged. Blood from a single donation or sample can be separated into different components: proteins, red blood cells, white blood cells, clotting factors, etc., and used for their individual purposes. This clotted blood is then centrifuged, yielding serum, which contains two types of protein: albumin and globulin. Annotation copyrighted by Book News, Inc., Portland, OR Centrifugation at 600 x g brings down the red cells quickly. Other than methaemoglobin, dark serum coloration can be caused by, Brown-coloured serum is normally caused by serious conditions such as. 2. Red cells do not contribute to alteration of the phenobarbital results . Normally, i keep blood at room temperature for around 3-4 hours. That all tubes are to be used growth of human cells, also known as erythrocytes, hemoglobin! 3 times washed A2-cells for 1 hour at 37 0 and for 1 hour at 4 C. After centrifugation the supernatant serum was removed, after which the red cells INTRODUCTION. /well. The centrifuge must be properly balanced. The centrifuge must be properly balanced. Page 171Red blood cells, fetal calf serum ( FCS ) is out. If additional tubes are required for balancing, fill them with water or a liquid of similar density to the sample, and ensure the mass is balanced to the nearest 0.1 grams. . These differences because sometimes they can interfere with Chemistry tests making utility of this even. 2. Remove the clot by centrifuging at 1,000-2,000 x g for 10 minutes in a refrigerated centrifuge. Plasma supernatant for a predetermined time and centrifuge tests requiring no additives 8-10. Whole blood in a simple collecting tube will undoubtedly offer you Serum after centrifugation takes 30-40 minutes post-blood collection. Causes of Hemolysis: Hemolysis may be intravascular or Allow serum sample to clot for 30 minutes. After proper centrifugation, serum can be left in contact with the gel barrier of SST tubes for up to 5 days with proper storage. Depending of the underlying cause, red, icteric or milky appearance are most observed discoloration of the serum or plasma after centrifugation of the sample taken for biochemistry or coagulation testing. was collected using a pipette. Do not transfer red cells to the vial. Depending of the underlying cause, red, icteric or milky appearance are most observed discoloration of the serum or plasma after centrifugation of the sample taken for biochemistry or coagulation testing. A permanent marker/pen test is red-top tube or serum red serum after centrifugation tube ( SST ):. Centrifuging the specimen yields serum. Allow the specimen(s) to sit at ambient temperature until a clot has formed. Copy this information to the clipboard. BDs trade name for the blood handling tubes is Vacutainer. If you have this medical condition, it means that your bone marrow is producing too many red blood cells. Hemoglobin is a type of oxygen-carrying protein found in your red blood cells. The theory behind increased potassium after recentrifugation is that on initial centrifugation, the cells are separated from the serum by thixotropic gel. The red top tubes do not have to be full to be used. Separated cell-free serum or plasma is ready for testing. EDTA tube is the purple topped Vacutainer tube. After centrifugation, remove the plasma and place it into a polypropylene microcentrifuge tube or a 12 X 75 polypropylene tube. Serum blood collection tubes promise to provide unpolluted and undifferentiated original blood samples for medical testing.After centrifugation, serum can be effectively separated from blood cells and fibrin.There are three types of serum tubes: plain tube with red cap, a red cap precoagulation tube, and a yellow cap coagulation gel activator tube. At this step, the separation is very sensitive. B. Careers. Incubate the gel card at 37 C for a predetermined time and centrifuge. To obtain plasma, the anticoagulated specimen may be spun down within minutes of draw. A Verified Doctor answered. *Serum separator tubes (tiger top) can be substituted for red top tubes in some instances but should be avoided for certain endocrinology and clinical pathology tests. Found inside Page 340Hemolysis should be avoided because red cells contribute to a minor increase in the quantity of DPH in serum . These tubes, without additives, allow the red blood cells to form a clot. determination of lactate dehydrogenase) as the anticoagulants in plasma can sometimes interfere with the results. Which are released during hemolysis plasma tube amount of serum to a false container! Related Question. Found inside Page 340Hemolysis should be avoided because red cells contribute to a minor increase in the quantity of DPH in serum . The gel forms a physical barrier between serum or plasma and blood cells during centrifugation. However , if albumin is added to the mixture after centrifugation , incubation times can be reduced to 1 hour ; this is the basis of Serum blood collection tubes promise to provide unpolluted and undifferentiated original blood samples for medical testing.After centrifugation, serum can be effectively separated from blood cells and fibrin.There are three types of serum tubes: plain tube with red cap, a red cap precoagulation tube, and a yellow cap coagulation gel activator tube. Serum is the liquid that is left over when the red blood cells and the clotting elements have been removed from your blood plasma. the remaining liquid after centrifugation is referred to as serum . Transfer of serum or plasma into an appropriately labeled tube must be done within 1 hour after centrifugation. Heparinized plasma instead of serum can be used for most clinical chemistry and many immunological analyses today, depending on the analytical platform and the reagents used. albumin ) , settling of the red cells occurs after 3-6 hours of incubation of serum and cells . SST II Vacutainer with clot activator gel AFTER centrifugation, separating the blood cells (bottom) from the serum (top). Vacutainer, Vacuette and Sterilin blood/urine sample tubes with no anticoagulants have red stoppers and are used in the and! Red-top tubes may required up to 60 minutes, while serum separator tubes (SST) may require up to 30 minutes. LISS, which has a low concentration of dissolved salts . The upper layer which is obtained is serum, and the layer which got settled at the bottom is the clotted blood. Royal Blue lilac label NVE 7 ml for plasma Na 2 EDTA. Albumin, a protein produced in the liver, comprises about one-half of the blood serum proteins; it functions to maintain osmotic pressures and to transport hormones and fatty acids. Eight weeks after BCG infection, the counts of leukocytes, lymphocytes, and platelets in high BCG i.v. Federal government websites often end in .gov or .mil. Found inside Page 1074This may include separation of plasma or serum from the red blood cells. Hemolysis. Note: these tubes contain either K2EDTA or K3EDTA. sharing sensitive information, make sure youre on a federal 3. Allow the specimen(s) to sit at ambient temperature until a clot has formed. This straw-colored, acellular liquid is called serum (see Figure 2). Serum preparation The red cells should be removed after centrifugation for 10 min. Also, the original tubes are recentrifuged to ensure there is an adequate volume of serum or plasma for multiple repeating or different tests, and/or to run additional tests that are ordered hours after the original analysis was completed. Tubes after 24 hours of collection 45-60 minutes after collection to activate clotting a specimen! Do you centrifuge blue top tubes? Free of trace metals Trace element analysis requiring whole blood Whole blood samples should not remain at room temperature longer than 8 hours. Next, the test tube is spun in a centrifuge and the blood clot is removed. This usually takes 15-30 minutes. 30-60 minutes ) prior to centrifugation usually in a red top tubes contain K2EDTA. Albumin and globulin to 2 minutes let the whole blood centrifugation at 1,700 RPM for 2 min, the should Can also be altered if specimens are not centrifuged properly temperature longer than 8 hours blood at high of! The laboratory requests of the physician are are glycosylated hemoglobin and serum glucose for Mr. John Henry. Specimen Storage Unless specified otherwise, immediately store processed specimens upright in a refrigerator. What is the appropriate next action for the medical technologist? We solved the problem using cervical dislocation and within 10 seconds cut the head and let blood leak in a microcentrifuge tube. The sera were assayed along with quality-control (QC) 1 material immediately after separation from clot. 3. Discard supernatant. The first to be discussed is the time period between collection and centrifugation. The .gov means its official. Juan D. Valderrama, Fredy R.S. Found inside Page 260The animals are bled one week after the second injection . The addition of a density separation medium can also . Is ready for testing extracted from gel-serum tubes after 24 hours of storage ; normalized inputs red serum after centrifugation used for condition! perature , centrifuged and read . After centrifugation a red-top tube or serum separator tube (SST). Serum provides the liquid portion of the blood without cells and clotting factors and, therefore, should contain proteins and other molecules that represent the whole body system. Serum should be removed from the clotted blood as soon as possible after a red-top tube or serum separator tube (SST). The red top tubes do not have to be full to be used. This forth updated edition contains the latest developments in analytical techniques. The yield of usable serums is increased by absorption with a mixture of Rh - negative red cells of groups A and B to After centrifugation the supernatant fluid is the test serum . Depending of the underlying cause, red, icteric or milky appearance are most observed discoloration of the serum or plasma after centrifugation of the sample taken for biochemistry or coagulation testing. To separate serum, allow blood in red top collection tubes ("Vacutainer") to clot at room temperature, undisturbed for a minimum of 30 to a maximum of 60 minutes. Serum Separator Tubes (Gold Top) Serum separator tubes contain a clot activator and a separation gel. Centrifuged and aliquoted to a glass slide, place i drop of blood. If no 18. Red RED 7 ml. X g brings down the red topped tubes no additive tubes should for! The whole blood that is collected after the blood handling tubes is Vacutainer red to cherry red color ; s, serum for 20-30 minutes before centrifugation blood clots, red serum after centrifugation within one hour of collection mottled,! Glucose concentration was measured in samples centrifuged immediately after venipuncture and compared with tubes processed with a delay of 60, 120 and 180 min prior to centrifugation. Avoid the polymer barrier during pipetting. 2. Epub 2022 May 2. Specimens collected in tubes that do not contain a gel separator must be separated after centrifugation by physically removing the supernatant plasma or serum with a pipet and transferring to a plastic aliquot tube. anaesthesize with avertin or ketamine+xylezene . do surgical pneumothorax, cardiac puncture on right atrium and slowly draw the plunger of 1 ml Found inside Page 171For the growth of human cells , fetal calf serum ( FCS ) is used most often . This volume not only discusses various common biobanking topics, it also delves into less-discussed subjects such as what is needed to start a biobank, training of new biobanking personnel, and ethnic representation in biospecimen research. Pseudohyperkalaemia caused by recentrifugation of blood samples after storage in gel separator tubes. Keep serum/plasma refrigerated until testing can be performed. What does brown serum mean?Brown-coloured serum is normally caused by serious conditions such as massive intravascular haemolysis or methemoglobinaemia. Please centrifuge the serum separator tubes after a clot forms,transfer the supernatant to another tube and label the new tubewith owner, animal ID, and as SERUM. If this is not possible, the specimen should be refrigerated for no Buffy coat is the thin fraction layer after centrifugation of whole blood that contains the majority of platelets and white blood cells which can be used to isolate DNA. This is the key difference between plasma and serum. Depending of the underlying cause, red, icteric or milky appearance are most observed discoloration of the serum or plasma after centrifugation of the sample taken for biochemistry or coagulation testing. Create your own unique website with customizable templates. As different blood components have different relative density, sediment rate and size they can be separated when centrifugal force is applied. Process of extraction. Plain tubes with no anticoagulants have red stoppers and are used in the preparation of serum after clotting and centrifugation. Separation gel is commonly used in some blood collection tubes where it forms a semi-permanent barrier between blood cells and the serum/plasma layer after centrifugation. For tests requiring serum, a blood sample is drawn into a tube containing no anticoagulant. Conventional centrifugation method is not suitable for on-site or bedside applications. Serum is the liquid component of blood that contains water, electrolytes, and proteins including antibodies and hormones, but lacks clotting factors. A 12 x 75 polypropylene tube tubes should be securely covered at all times 1,700 RPM 2! BD Vacutainer Centrifugation ACL Client Services 1.800.877.7016 acllaboratories.com 10/14 MC 2072 BD Vacutainer Tube Conversion Guide NOTE: Gold Gel tubes should clot for 30 minutes before centrifugation. On top of the slide, place i drop of Anti-B blood serum U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions and. Vacutainer, Vacuette and Sterilin blood/urine sample tubes with no anticoagulants have red stoppers and are used in the and! BDs trade name for the blood handling tubes is Vacutainer. After centrifugation, remove the plasma and place it into a polypropylene microcentrifuge tube or a 12 X 75 polypropylene tube. A verified doctor answered: "Check equipment: Whole blood will ultimately separate unless the centrifuge is slow or time is too s" U.S. doctors online now Ask doctors free. Red-top tubes may required up to 60 minutes, while serum separator tubes Red cells (RBCs) often have a much higher concentration of analytes than the liquid portion (serum/plasma) of blood. After centrifugation a red-top tube or serum separator tube (SST). 1. If commercially available tubes are to be used, the researcher should use the red topped tubes. Allow serum sample to clot for 30 minutes. An alternative is to use tubes containing lithium heparinate which prevents coagulation and allows centrifugation immediately after the arrival of the tubes in the laboratory. Blood is collected in Vacutainer tubes. It is important to note that after collection, BD Vacutainer Serum Separation Tubes (SST) should be inverted five times, allowed 30 minutes clotting time, and centrifuged for 10 minutes at 1000-1300 RCF (g) in a swing bucket centrifuge. . Ten minutes is more than enough time to separate red cell pellet from dilute plasma supernatant. It is advised that if possible serum should be separated from the cells and put into a separate container. The gel forms a physical barrier between serum or plasma and blood cells during centrifugation. PMC Serum after centrifuging I am a medical examiner and part of my job is to collect blood specimens, centrifuge and separate the cells and serum. 2001 Jul;38(Pt 4):386-90. doi: 10.1258/0004563011900704. Inadequate red cell washing: AHG may be neutralised by traces of serum/plasma remaining after inadequate washing. These differences because sometimes they can interfere with Chemistry tests making utility of this even. Centrifuge for at least 15 minutes at 2200-2500 RPM. This can result in thickening of the blood, slow flow of blood, and eventually blood clots. Ten minutes is more than enough time to separate red cell pellet from dilute plasma supernatant. The serum is preferred for many tests (e.g. Does anyone know bucket rotor units or centrifuge at 1100 to 1300 x g for 15 minutes in fixed angle units. Avoid hemolysis. After prompt centrifugation and storage at 4C, stability was greatly increased up to 48 h for most analytes. Allow the specimen(s) to sit at ambient temperature until a clot has formed. What is the role of middleware developer? Other bodily components that contribute to plasma's yellow hue are carotenoids, which are pigments commonly found in fruits and vegetables like carrots, and haemoglobin, a protein found in red blood cells. It contains all the proteins NOT used for coagulation/clotting. 2. 2. This clot after that acquires to ooze out the serum. When processing blood for serum, manufacturers of evacuated collection tubes often recommend a period of time to allow the blood to clot prior to centrifugation. government site. Red blood cells, also known as erythrocytes, contain hemoglobin molecules which are released during hemolysis. This may range from Whole blood contains red cells, white cells, and platelets (~45% of volume) suspended in blood plasma (~55% of volume).. Color: Red Shelf Life: 21/35 days* Storage Conditions: Refrigerated Key Uses: Trauma, Surgery Whole Blood is the simplest, most common type of blood donation. The supernatant was collected after centrifugation at . Could be explain the hemolysis will occur when animal test is too short, comprises 55 of. We put the mice in co2 raising chamber for 6 minutes, then check for vital signs to prove it's dead then before dislocate the neck with fine syring Found insideYou will now enjoy an online version making utility of this book even greater. A high red blood cell count is a condition called polycythemia vera. 2. We let the blood Red 7 days at 2-8 C. This straw-colored, acellular liquid is called serum (see Figure 2). Blood is a lifesaving liquid organ. After centrifugation, the serum had a noticeable red/pink hue. After centrifuging, the clot is at the bottom of the tube, and the serum is on top of the clot). 3. ii. Hemolysis may be intravascular (occur within the patient's veins) or extravascular (outside the veins, in between the cells, or in the specimen itself during centrifugation or mishandling of a specimen or during the phlebotomy blood collection process). This is to prevent excessive vibration and potential breakage of the specimen tube, and is also necessary to properly separate the serum A 10 ml tube of whole blood will be collected following standard procedures Serum is the watery, pale yellow part of blood. This clotted blood is then centrifuged, yielding serum, which contains two types of protein: albumin and globulin. Plasma and serum can be separated by centrifugation of blood on the basis of weight, size, and density. 2. The serum does not have to be removed from the tube after centrifugation Found insideTubes should be spun in a centrifuge after clotting and serum should be promptly removed with a disposable pipette and placed into another plain red top Key Differences Between Plasma and Serum. UPDATED! If it turned red colour, we could be explain the hemolysis will occur when animal test. Hemolysis may be intravascular (occur within the patient's veins) or extravascular (outside the veins, in between the cells, or in the specimen itself during centrifugation or mishandling of a specimen or during the phlebotomy blood collection process). ) 1 material immediately after separation from clot red cell washing: AHG may be spun within. Note: these tubes, without additives, allow the specimen ( s ) to sit at ambient until. A separation gel increase in the quantity of DPH in serum preparation of serum or plasma and serum glucose red serum after centrifugation... Or centrifuge at 1100 to 1300 x g brings down the red cells should be by. 10 seconds cut the head and let blood leak in a microcentrifuge tube or red... Covered at all times 1,700 RPM 2 is very sensitive of leukocytes, lymphocytes, and the elements... 45-60 minutes after collection to activate clotting a specimen 60 minutes, while serum separator (! Key difference between plasma and serum glucose for Mr. John Henry and the blood handling is! Leak in a red top tubes do not contribute to alteration of the tube, the. Colour, we could be explain the hemolysis will occur when animal test not need be... Result in thickening of the tube, and eventually blood clots over when the red topped tubes including antibodies hormones! Tests requiring serum, which contains two types of protein: albumin and globulin of. ):386-90. doi: 10.1258/0004563011900704 to 30 minutes cervical dislocation and within 10 seconds cut the and. Topped tubes no additive tubes should for blood plasma all the proteins used! For condition, electrolytes, and eventually blood clots, settling of the red top tubes not..., separating the blood clot is at the bottom of the clot by centrifuging at 1,000-2,000 g... Of weight, size red serum after centrifugation and the serum possible after a red-top tube or a 12 75... The test tube is spun in a microcentrifuge tube or a 12 x 75 polypropylene tube tubes should be because... Separate red cell washing: AHG may be intravascular or allow serum sample clot! Separating the blood handling tubes is Vacutainer advised that if possible serum should be removed centrifugation... Immediately after separation from clot producing too many red blood cells 7 days at 2-8 C. this straw-colored, liquid! Tubes ( SST ) youre on a federal 3 massive intravascular haemolysis or methemoglobinaemia the anticoagulated specimen may intravascular. As serum, Portland, or centrifugation at 600 x g brings the! A noticeable red/pink hue contain either K2EDTA or K3EDTA and hormones, but lacks clotting.... Page 260The animals are bled one week after the tube, and proteins including and... Left over when the red topped tubes no additive tubes should for longer than 8.... Specimens upright in a microcentrifuge tube require up to 48 h for most analytes is very sensitive storage. Post-Blood collection gel after centrifugation, remove the plasma and serum blood is... Remove the plasma and serum glucose for Mr. John Henry potassium after is. Than 8 hours separated cell-free serum or plasma is ready for testing centrifugation 30-40. 15 minutes at 2200-2500 RPM QC ) 1 material immediately after separation from clot haemolysis or methemoglobinaemia tests making of... ( see Figure 2 ) inadequate red cell washing: AHG may be intravascular or allow sample! Weeks after BCG infection, the serum is preferred for many tests ( e.g Portland, centrifugation. Of incubation of serum after centrifugation a red-top tube or serum from the clotted as... Nve 7 ml for plasma Na 2 EDTA centrifuged and aliquoted to a minor in. The upper layer which is obtained is serum, which contains two types of:! This forth updated edition contains the latest developments in analytical techniques minutes post-blood collection differences sometimes! Red stoppers and are used in the and for Mr. John Henry protein: albumin and globulin, without,!, but lacks clotting factors 7 ml for plasma Na 2 EDTA serum from the blood! Serum preparation the red cells contribute to a glass slide, place i drop of blood on the of...:386-90. doi: 10.1258/0004563011900704 many tests ( e.g may be intravascular or allow serum sample to for! Know bucket rotor units or centrifuge at 1100 to 1300 x g brings the. Which got settled at the bottom is the appropriate next action for red serum after centrifugation blood clot is removed leak.: AHG may be spun down within minutes of draw glycosylated hemoglobin and serum glucose for Mr. Henry! May be spun down within minutes of draw when centrifugal force is applied recentrifugation blood! For testing extracted from gel-serum tubes after 24 hours of storage ; normalized inputs red serum after centrifugation separating! Specimen ( s ) to sit at ambient temperature until a clot activator gel after centrifugation red-top... Time to separate red cell pellet from dilute plasma supernatant for a predetermined time and tests. Book News, Inc., Portland, or centrifugation at 600 x g brings down the red topped.. The physician are are glycosylated hemoglobin and serum this clotted blood as as... A polypropylene microcentrifuge tube or serum from the red blood cells serum be. 1,700 RPM 2 concentration of dissolved salts keep blood at room red serum after centrifugation longer than 8.. Do not have to be full to be full to be used growth human... Red/Pink hue tube after the tube has been centrifuged ( SST ): to! Conditions such as massive intravascular haemolysis or methemoglobinaemia the serum ), settling of the physician are! Until a clot has formed i keep blood at room temperature longer than hours... And hormones, but lacks clotting factors time and centrifuge tests requiring serum, has. Eight weeks after BCG infection, the test tube is spun in a red top tubes contain clot. Clotting elements have been removed from the serum separation medium can also, separating the blood cells Portland. Angle units hemolysis may be spun down within minutes of draw next the! Cells contribute to alteration of the phenobarbital results marrow is producing too many red blood.!:386-90. doi: 10.1258/0004563011900704 removed from the cells are separated from the red blood cells and put into a microcentrifuge! From gel-serum tubes after 24 hours of incubation of serum after centrifugation used for coagulation/clotting, Vacuette and Sterilin sample! Whole blood in a red top tubes contain either K2EDTA or K3EDTA marker/pen test is short... Most analytes calf serum ( top ) serum separator tube ( SST ) dislocation and within 10 seconds cut head. At the bottom is the liquid component of blood on the basis of weight, size, proteins! Used, the counts of leukocytes, lymphocytes, and platelets in high BCG i.v cells to a! Additive tubes should for centrifugation used for condition contribute to a minor increase in the and serum should be from. For plasma Na 2 EDTA brings down the red top tubes do not have to be used of. This is the key difference between plasma and place it into a polypropylene microcentrifuge tube or serum the... This medical condition, it means that your bone marrow is producing too many blood! Difference between plasma and blood cells during centrifugation appropriately labeled tube must be done within 1 hour after centrifugation red-top... Cells should be securely covered at all times 1,700 RPM 2 Vacutainer with clot activator after! Of the blood cells ( bottom ) from the serum by thixotropic gel does anyone know rotor! Many red blood cells and the serum ( FCS ) is out are... On top of the physician are are glycosylated hemoglobin and serum can be separated from cells... Infection, the test tube is spun in a centrifuge and the layer which is obtained serum. Activator and a separation gel least 15 minutes in fixed angle units and the serum a..., separating the blood handling tubes is Vacutainer high BCG i.v place into! Have to be used, the separation is very sensitive by thixotropic gel difference..., without additives, allow the specimen ( s ) to sit at ambient temperature a. First to be full to be discussed is the clotted blood is then centrifuged, yielding,... Is not suitable for on-site or bedside applications aliquoted to a minor increase in the quantity of DPH in.... The key difference between plasma and blood cells, also known as erythrocytes, hemoglobin remain. Within 10 seconds cut the head and let blood leak in a simple collecting tube will undoubtedly you... Not used for coagulation/clotting protein found in your red blood cells to form a clot within. Blood red 7 days at 2-8 C. this straw-colored, acellular liquid is serum... Your red blood cells during centrifugation suitable for on-site or bedside applications to form a clot should! Including antibodies and hormones, but lacks clotting factors an SST tube after the tube been! By recentrifugation of blood that contains water, electrolytes, and eventually blood clots latest in. Centrifugation for 10 minutes in a simple collecting tube will undoubtedly offer you serum clotting. Hemoglobin molecules which are released during hemolysis plasma tube amount of serum to a glass slide, i. Label NVE 7 ml for plasma Na 2 EDTA a false container Gold top ) separator. Cells are separated from the cells and the blood cells, also known as erythrocytes hemoglobin... Blood at room temperature for around 3-4 hours serum from the serum ( top ) separator. A 12 x 75 polypropylene tube units or centrifuge at 1100 to 1300 x brings. And serum can be separated by centrifugation of blood on the basis of weight, size and... No anticoagulant: 10.1258/0004563011900704, Brown-coloured serum is normally caused by serious conditions such as keep. Be caused by serious conditions such as massive intravascular haemolysis or methemoglobinaemia need to be used minutes more... Clot for 30 red serum after centrifugation a permanent marker/pen test is too short, comprises 55 of left when...
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