Before performing puncture or cannulation of the radial artery, what should you do?
a. Fix and tighten a tourniquet above the an-tecubital fossa.
b. Perform the Allen test to ensure collateral circulation.
c. Inject heparin into the adjoining subcuta-neous tissues.
d. Apply firm pressure to the arterial site for 5 min.
Q. 2 How long should you wait before drawing an ABG on a chronic obstructive pulmonary disease (COPD) patient whose FiO2 has just been changed?
a. 5 to 10 min
b. 10 to 15 min
c. 15 to 20 min
d. 20 to 30 min
Q. 3 After obtaining an arterial blood sample, what should you do?
1. Apply pressure to the puncture site until bleeding stops.
2. Place the sample in a transport container with ice slush.
3. Check to see if the patient is getting anticoagulant therapy.
4. Mix the sample by rolling and inverting the syringe.
a. 1 and 2 only
b. 1, 2, and 4 only
c. 3 and 4 only
d. 1, 2, 3, and 4
Q. 4 Which of the following describes the correct procedure for an Allen test?
a. Compress both the radial and ulnar arter-ies, and then release the radial artery.
b. Compress both the radial and ulnar arter-ies, and then release the ulnar artery.
c. Compress both the radial and ulnar arter-ies, and then release both arteries at once.
d. Compress the brachial artery only and ob-serve circulation to the hand.
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