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 D
Explanation
The correct answer is Choice D
Choice A rationale: Repeating information may reinforce understanding but does not address the core barrier in unilateral hearing loss, which is sound localization and clarity. Auditory input from one ear limits binaural processing, making it harder to distinguish speech from background noise. Repetition without visual cues or proper orientation may still result in misinterpretation. Effective communication requires compensating for the sensory deficit, not merely reiterating content. Thus, repetition alone is insufficient for optimal education delivery.
Choice B rationale: Writing on a whiteboard provides visual support but lacks the dynamic interaction necessary for patient education. While visual aids help reinforce concepts, they do not allow for immediate clarification or emotional engagement. Pain management education involves nuanced discussion of pharmacologic options, side effects, and patient preferences. Relying solely on written communication may hinder comprehension, especially if literacy or cognitive load is a concern. It should supplement, not replace, direct verbal and visual interaction.
Choice C rationale: Speaking loudly into the affected ear is counterproductive and may distort sound further. In unilateral hearing loss, the affected ear has reduced or absent auditory function, and increasing volume does not restore clarity. Loud speech can also be perceived as aggressive or uncomfortable. Effective communication requires engaging the functional ear and using visual cues to enhance comprehension. Loudness does not compensate for neural deficits in auditory processing and may worsen patient experience.
Choice D rationale: Facing the client allows for optimal use of visual cues such as lip reading, facial expressions, and gestures, which are critical in compensating for unilateral auditory deficits. This technique engages the functional ear while supporting multimodal communication. It respects the neurophysiological limitations of monaural hearing and enhances speech perception through visual-auditory integration. Direct face-to-face interaction also fosters trust and allows for immediate feedback, making it the most scientifically sound approach for patient education.
Correct Answer is C
Explanation
It is important to determine if the client has any plans or intentions to act upon the voices' instructions. This information helps gauge the level of risk and guides further interventions and safety measures.
While the other questions may also be important to ask during the assessment, determining if the client believes the voices are real and when the voices began can provide valuable information about the client's perception and the duration of the symptoms. Asking about the use of hallucinogens is relevant to identify potential substance-induced causes of the hallucinations. However, assessing the client's intent and potential for harm is the priority in this situation.
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