Differences between Capillary and Venous Blood 1. Blood from a skin puncture is a mixture of blood from arterioles, veins and capillaries, and it contains some interstitial and intracellular fluid. 2. The packed cell volume (PCV), red cell count (RBC) and haemoglobin concentration (Hb) of capillary blood are slightly greater than in venous blood. 3. The total leucocyte, neutrophil, and monocyte counts are higher in capillary blood 4. Conversely, the platelet count appears to be higher in venous than ...
what is blood collection? • It is a process where blood is withdrawn from a patient for medical investigation purposes. • Why do we do this? Blood is collected from patients for analyzing one of the following: 1. Blood cell contents 2. Performing Microbiological tests 3. Performing biochemical tests • What are the blood collection methods? 1. Arterial sampling. 2. Venipuncture sampling. 3. Fingerstick sampling. Arterial sampling • It is when blood is collected from an artery mostly used in ...
Outline Clinical biochemistry Laboratory work flow cycle . Phlebotomy. Quality Control. The Interpretation of Results. 2 . Ass. Lec. Farah S. J 06:17 PM 9/11/22 The Laboratory work flow cycle Every biochemistry analysis should attempts to answer a question which the clinician has posed about the patient obtaining the correct answer can often seem to be fraught with difficulty. So, there are three phases of laboratory testing: Pre-analytical: test ordering, specimen collection, transport and processing Analytical-testing Post-analytical: results transmission, interpretation, follow-up, retesting ...
Capillary or peripheral blood • From tip of finger or lobe of the ear. • Clean the site with an alcohol swab . • Let the skin dried . • Puncture is mad with disposable lancet. • The second drop is used. • Sterile gauze applied with slight pressure. Venous blood collection: • From anti cubital fosaa. • Rubber tourniquet is used . • Clean the site with an alcohol swab. • Let the skin dried . • Vain fixed with the finger . &bull ...
List and describe the various types of equipment needed for capillary specimen collection Describe the composition of capillary specimens, identify the tests that have different reference values when collected by capillary puncture methods, and name tests that cannot be performed on capillary specimens Identify indications for performing capillary puncture on adults, children, and infants List the order of draw for collecting capillary specimens Describe proper procedure for selecting the puncture site and collecting capillary specimens from adults, infants, and children ...
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