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
MRSA is a highly contagious bacteria that can easily spread from person to person through direct contact or contact with contaminated surfaces. By instructing the family to adhere to contact precautions, the nurse can help prevent the spread of MRSA to the client's postoperative wound. Contact precautions typically involve wearing gloves and a gown when in direct contact with the client or the client's immediate environment.
While reporting any increase in the white blood cell count, changing the surgical dressing when soiled, and wearing a face mask during wound care are all important aspects of postoperative care, they are not specifically targeted at preventing the recurrence of MRSA. Adhering to contact precautions is the most effective measure to prevent the spread of MRSA and protect the client from further infection.
Correct Answer is D
Explanation
The client's statement of feeling worthless most days and having no interest in activities she previously enjoyed indicates a potential risk for self-directed violence, including self-harm or suicidal ideation. These signs are significant and require immediate attention and intervention by the nurse.
Assessing and addressing the client's risk for self-directed violence is of utmost importance to ensure her safety and well-being. The nurse should initiate a thorough assessment of the client's mental health, including assessing for any suicidal ideation, intent, or plans. It is crucial to establish a supportive and non-judgmental environment for the client to express her feelings and concerns.
The nurse should collaborate with the healthcare team to develop an appropriate care plan that may involve interventions such as close observation, involving a mental health professional, implementing safety measures, and providing emotional support.
While addressing other nursing problems, such as anxiety, imbalanced nutrition, and chronic low self-esteem, is important, the immediate concern is the client's risk for self-directed violence due to her feelings of hopelessness.
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