Nokea
The vein of choice for phlebotomy is
- A. The median cubital.
- B. The basilic.
- C. The cephalic.
- D. Any vein that is not tortuous.
Correct Answer: A
Rationale: The median cubital vein is preferred for phlebotomy due to its accessibility, size, and stability.
You may also like to solve these questions
You should avoid which of the following actions that can cause hemolysis?
- A. Using a 20- or 22-gauge needle and syringe
- B. Leaving the tourniquet on longer than 1 minute
- C. Using an evacuated tube set and a 25-gauge needle
- D. Withdrawing the blood slowly when using a needle and syringe
Correct Answer: B,C
Rationale: Leaving the tourniquet on too long or using a small-gauge needle (e.g., 25-gauge) with an evacuated tube can cause hemolysis due to excessive pressure or shear stress on red blood cells.
When performing dermal punctures, what sites are commonly used in an infant, older child, and adult?
- A. Heel for infants, finger for older children and adults
- B. Earlobe for infants, finger for older children and adults
- C. Heel for infants, earlobe for older children, finger for adults
- D. Finger for all ages
Correct Answer: A
Rationale: The heel is used for infants due to safety and accessibility, while fingers are used for older children and adults for dermal punctures.
Why is it important that you tell the patient exactly what you are about to do before you begin?
- A. To gain the patient's cooperation
- B. To delay the start of the task
- C. To reduce patient anxiety
- D. To demonstrate your knowledge
Correct Answer: A,C
Rationale: Informing the patient about the procedure helps gain their cooperation and reduces anxiety by setting clear expectations and building trust.
The labels you apply to the blood specimen tubes should contain some of the following data. Which data should be included on the label?
- A. Patient's first and last name
- B. Hospital identification number for inpatient
- C. Date of birth for outpatient
- D. Physician's name
- E. Type of test ordered
- F. Date test was ordered
- G. Date and time specimen was collected
Correct Answer: A,B,C,G
Rationale: Labels must include the patient's name, hospital ID (for inpatients), date of birth (for outpatients), date and time of collection, and the phlebotomist's initials to ensure proper identification and traceability.
Which of the following statements is(are) accurate regarding veins?
- A. Veins are deeper than arteries.
- B. Veins carry deoxygenated blood.
- C. Veins carry blood back to the heart.
- D. Vein walls are thicker than arterial walls.
Correct Answer: B,C
Rationale: Veins carry deoxygenated blood back to the heart, while arteries carry oxygenated blood away. Vein walls are thinner, not thicker, than arterial walls.