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Questions and Answers
What is the best site for venous blood collection?
What is the best site for venous blood collection?
- Jugular vein
- Dorsum of hand vein
- Forearm vein (correct)
- Femoral vein
What is the main reason for the majority of routine tests being performed on venous blood?
What is the main reason for the majority of routine tests being performed on venous blood?
- Venous blood clots faster
- Most majority of routine tests are performed on venous blood (correct)
- Venous blood is easier to collect
- Venous blood contains more antigens
What is the function of EDTA (Ethylene Diamine Tetra-Acetate) in anticoagulant tubes?
What is the function of EDTA (Ethylene Diamine Tetra-Acetate) in anticoagulant tubes?
- Promotes clotting
- Enhances platelet aggregation
- Forms Ca salts to remove Ca (correct)
- Prevents coagulation by inhibiting thrombin
Why is a properly labeled specimen essential for blood collection?
Why is a properly labeled specimen essential for blood collection?
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What should be noted carefully when handling a test request form?
What should be noted carefully when handling a test request form?
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Study Notes
Venous Blood Collection
- The best site for venous blood collection is the median cubital vein, located in the antecubital fossa.
Importance of Venous Blood
- The majority of routine tests are performed on venous blood because it is a more representative sample of the body's overall circulation, providing a more accurate reflection of the body's physiological state.
EDTA (Ethylene Diamine Tetra-Acetate)
- EDTA is an anticoagulant used in blood collection tubes, functioning to prevent blood clotting by chelating calcium ions, thereby allowing for the collection of blood samples for hematology and other diagnostic tests.
Specimen Labeling
- A properly labeled specimen is essential for blood collection to ensure accurate patient identification, prevent specimen misidentification, and maintain the integrity of the testing process.
Test Request Form
- When handling a test request form, it is essential to note carefully the patient's demographic information, test(s) requested, and any special instructions or requirements to ensure accurate and efficient testing.
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Description
Test your knowledge on blood sample collection procedures and important considerations. Learn about proper labeling, sources of blood collection, and the significance of accurate test requests.
