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 ["A","B","D"]
Explanation
A) Correct- Weighing the client and reporting any weight gain is a routine measurement that can be safely performed by the UAP. Weight gain can be an important indicator of fluid retention, a common issue in Cushing's syndrome.
B) Correct- Reporting any client complaints of pain or discomfort is important for monitoring the client's well-being and promptly addressing any potential issues.
C) Incorrect- Evaluating the client for sleep disturbances involves assessing the client's sleep patterns, quality, and potential disruptions. This requires nursing judgment and a deeper understanding of the client's condition and potential contributing factors, so it's not appropriate to delegate this task to the UAP.
D) Correct- Noting and reporting the client's food and liquid intake during meals and snacks is part of monitoring the client's nutritional status, which is an appropriate task for the UAP.
E) Incorrect- Assessing the client for weakness and fatigue involves a more comprehensive evaluation of the client's physical and physiological status, which requires nursing expertise. The nurse should directly assess and interpret these symptoms in the context of Cushing's syndrome to provide appropriate interventions.
Correct Answer is ["400"]
Explanation
To calculate the mL/hr rate for the infusion pump, we can use the following formula: mL/hr = (Total volume to be infused in mL) / (Time in hours)
In this case, the total volume to be infused is 200 mL, and the infusion time is 30 minutes, which is equal to 0.5 hours.
mL/hr = 200 mL / 0.5 hours mL/hr = 400 mL/hr
Therefore, the nurse should program the infusion pump to deliver 400 mL/hr.
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