When should the nurse conduct an Allen's test?
Just before arterial blood gasses are drawn peripherally.
Prior to attempting a cardiac output calculation.
To assess for presence of a deep vein thrombus in the leg.
When pulmonary artery pressures are obtained.
The Correct Answer is A
Allen's test is a procedure used to assess the patency of the ulnar artery and the collateral circulation of the hand. It is performed to determine the adequacy of collateral circulation before obtaining arterial blood gases from the radial artery. The test helps ensure that the ulnar artery is functioning properly and can supply blood to the hand if the radial artery is used for blood sampling or other invasive procedures.
The test involves occluding both the ulnar and radial arteries while the patient clenches their fist. The nurse then releases pressure on the ulnar artery while maintaining occlusion of the radial artery. The hand should quickly regain normal coloration, indicating adequate collateral circulation.
It's important to note that the Allen's test is specific to the assessment of collateral circulation in the hand and is not used for other purposes such as assessing deep vein thrombosis, cardiac output calculation, or obtaining pulmonary artery pressures.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["25"]
Explanation
The prescription is for 1 gram of azithromycin, which is 1000 mg. The concentration of
the suspension is 200 mg per 5 mL. To calculate the amount in mL:
1000 mg / 200 mg per 5 mL = 25 mL
The nurse should administer 25 mL of the suspension.
Correct Answer is A
Explanation
The correct answer ischoice A.
Choice A rationale:
Having the client vocalize the instructions provided ensures that they have understood the information correctly.This method allows the nurse to confirm comprehension and clarify any misunderstandings.
Choice B rationale:
Providing written instructions for eye drop administration is helpful but does not ensure that the client understands the instructions.It is a good supplementary measure but should not be the sole method of communication.
Choice C rationale:
Speaking clearly and facing the client for lip reading is important, especially for clients with hearing impairments.However, it does not guarantee that the client has understood the instructions.
Choice D rationale:
Ensuring that someone will stay with the client for 24 hours is a good safety measure but does not directly address the client’s understanding of the discharge instructions.
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