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 • It is a process where blood is withdrawn from a patient for medical investigation purposes.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 assessing the pulmonary functions by testing the blood gas content. • Arterial blood collection is not performed widely. • Note ...
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 in capillary blood this may be due to adhesion of platelets to the site of the skin puncture. A ...
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 Lancet/Incision Devices Finger puncture Heel puncture Laser lancet Collection Devices Microcollection Containers Microhematocrit tubes Plastic/clay sealant Capillary blood gas collection ...
Objectives At the end of the chapter, the student will be able to • Define specimen • Explain about different kind of specimens • Discuss about factors affect blood composition • List the important steps in specimen collection • Discuss about preservation, storage, and transportation of specimens. Outline of Specimen collection, processing, & preservation • Specimen for biochemical analysis • Specimen types and collection • Coding of stopper colors • Skin puncture • Arterial puncture • Venipuncture • Common specimen factors affecting test results Outline of Specimen collection, processing, & preservation, continued.. • Stability of chemical substances in ...
PPT - Power Point | 0.89 MB | Free Download
