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.

Answer and Explanation

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.

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Correct Answer is ["B","C","D","E"]

Explanation

Choice A rationale: Misplacing car keys occasionally is a common occurrence and may not necessarily indicate Alzheimer's disease. It can happen to anyone, especially when distracted or in a hurry.

Choice B rationale: Difficulty performing familiar tasks, such as cooking a meal or driving to a familiar location, is an early warning sign of Alzheimer's disease. It indicates changes in cognitive function.

Choice C rationale: Losing sense of time, such as not knowing the date, day of the week, or season, can be an early indicator of Alzheimer's disease. It reflects impairments in temporal orientation.

Choice D rationale: Problems with performing basic calculations, such as managing finances or following a recipe, are early signs of Alzheimer's disease. It shows a decline in cognitive abilities related to numbers and problem-solving.

Choice E rationale: Becoming lost in a usually familiar environment, such as getting disoriented in one's own neighborhood, is a significant early warning sign of Alzheimer's disease. It suggests spatial and memory impairments.

A. Evaluate upper and lower extremities for perfusion, pulse volume, and pitting edema. B. Secure client consent for coronary angiography and percutaneous coronary intervention. C. Administer four 81 mg aspirin tablets providing instructions to chew before swallowing. D. Place an indwelling urinary catheter and institute strict intake and output measurements.

Correct Answer is C

Explanation

Given the client's symptoms of constant chest pressure that is unrelieved with rest, along with the client's appearance of anxiety, pallor, and diaphoresis, it indicates a high likelihood of an acute coronary event, such as a myocardial infarction (heart attack). In this situation, the nurse should prioritize immediate actions that address the potential cardiac emergency.

Aspirin is an essential medication in the initial management of acute coronary syndrome, including unstable angina and myocardial infarction. It helps to inhibit platelet aggregation and reduce the risk of clot formation in the coronary arteries. The chewable form of aspirin is recommended because it allows for more rapid absorption.

While evaluating extremities for perfusion, pulse volume, and pitting edema is important in assessing the client's overall cardiovascular status, it is not the immediate next step when faced with a suspected acute coronary event.

Securing client consent for coronary angiography and percutaneous coronary intervention (PCI) is a relevant step in the management of unstable angina and myocardial infarction, but it is not the immediate action to be taken in the emergency department. The client requires stabilization and initial medical interventions before procedural consent can be obtained.

Placing an indwelling urinary catheter and instituting strict intake and output measurements is not a priority action in this situation. The focus should be on addressing the potential acute coronary event and ensuring the client's cardiac stability. Urinary catheterization and monitoring of intake and output can be considered later, if necessary.

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When should the nurse conduct an Allen's test?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

When providing community healthcare teaching regarding the early warning signs of Alzheimer's disease, which signs should the nurse advise family members to report (Select all that apply)?

Correct Answer is ["B","C","D","E"]

Explanation

A client with a history of unstable angina presents to the emergency department with constant chest pressure that is unrelieved with rest. The client appears anxious, pale, and diaphoretic. After obtaining the client's vital signs, which action should the nurse take next?

Correct Answer is C

Explanation

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