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 B
Explanation
A functional assessment is an evaluation of an individual's ability to perform activities of daily living (ADLs), which includes tasks such as bathing, dressing, toileting, eating, and mobility. Falls are a common and significant issue among older adults and are a leading cause of injury and hospitalization. Therefore, it is important to assess the client's risk of falling and inquire about any recent falls to develop an appropriate plan of care to prevent falls.
Encouraging the client to lie as still as possible during the assessment is not appropriate as it may not provide an accurate evaluation of the client's ability to perform ADLs.
Additionally, it is important to assess the client's functional status in a way that is safe and comfortable for them.
Assisting the client with values clarification about end-of-life care options is not appropriate during a functional assessment as it is not directly related to the client's ability to perform ADLs.
Asking the client how often episodes of sundowning are experienced is not appropriate during a functional assessment as sundowning is a symptom of dementia and is not directly related to the client's ability to perform ADLs.
Correct Answer is B
Explanation
After retinal detachment surgery, it is crucial to protect the eye and the surgical repair site from accidental trauma or pressure. Providing an eye shield helps to shield the eye during sleep when the client may not have conscious control over their movements.
This can help prevent inadvertent rubbing or bumping of the eye, which could potentially disrupt the surgical repair and hinder the healing process.
Obtaining vital signs every 2 hours during hospitalization is a routine nursing intervention for postoperative care in general but is not specific to retinal detachment surgery. The frequency of vital sign monitoring may vary depending on the client's overall condition and the healthcare provider's orders.
Teaching a family member to administer eye drops may be necessary for the client's ongoing care, but it is not specifically related to the immediate postoperative period. Eye drop administration instructions can be provided as part of the client's discharge teaching.
Encouraging deep breathing and coughing exercises is a general postoperative intervention that promotes respiratory function and helps prevent complications such as pneumonia. While important for overall postoperative care, it is not specific to retinal detachment surgery.
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