Which action should the nurse take first when the low pressure alarm sounds for a patient who has an arterial line in the left radial artery?

Re-zero the monitoring equipment.

Check the left hand for pallor.

Fast flush the arterial line.

Assess for dysrhythmias

Answer and Explanation

The Correct Answer is B

B. Checking the left hand for pallor can help assess peripheral perfusion and determine if there is adequate blood flow distal to the arterial line insertion site. Pallor in the left hand could indicate decreased perfusion, which may contribute to the low-pressure alarm.

A. Re-zeroing the monitoring equipment may be necessary to ensure accurate pressure readings. However, it should not be the first action taken when the low-pressure alarm sounds. Before re-zeroing, the nurse should assess the patient's condition to ensure there are no immediate issues affecting arterial pressure.

C. Fast flushing the arterial line is not typically the first action to take when the low-pressure alarm sounds. Fast flushing may increase the risk of dislodging the catheter or causing air embolism if there is a problem with the line.

D. Assessing for dysrhythmias should be part of the overall assessment but may not be the first action taken in response to the alarm.

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Correct Answer is B

Explanation

B Metformin is an oral antidiabetic medication commonly used to treat type 2 diabetes. There is a potential risk of lactic acidosis when metformin is used in conjunction with contrast material, particularly in patients with underlying renal impairment. Contrast-induced nephropathy can exacerbate renal dysfunction, leading to increased levels of metformin and potentially increasing the risk of lactic acidosis. Therefore, metformin use before or after contrast administration should be carefully monitored, and in some cases, temporarily discontinued to reduce the risk of lactic acidosis.

A Atorvastatin is a statin medication commonly used to lower cholesterol levels. It does not have a direct interaction with contrast material used in cardiac catheterization. Therefore, it does not place the client at risk for acute kidney injury related to contrast-induced nephropathy (CIN).

C Carvedilol is a beta-blocker medication used to treat high blood pressure and heart failure. It does not have a direct interaction with contrast material used in cardiac catheterization. Therefore, it does not place the client at risk for acute kidney injury related to contrast-induced nephropathy (CIN).

D Nitroglycerin is a medication commonly used to relieve chest pain (angina) in patients with coronary artery disease. It does not have a direct interaction with contrast material used in cardiac catheterization. Therefore, it does not place the client at risk for acute kidney injury related to contrast- induced nephropathy (CIN).

A. Bradycardia. B. Muffled heart sounds C. Flattened neck veins. D. Sudden lethargy.

Correct Answer is B

Explanation

B. Muffled heart sounds, often described as distant or indistinct, are classic findings in cardiac tamponade. The accumulation of fluid in the pericardial sac dampens the transmission of sound from the heart to the chest wall, resulting in muffled heart sounds on auscultation. This finding is known as Beck's triad, which also includes hypotension and jugular venous distention.

A. Bradycardia is not a typical finding in cardiac tamponade. In fact, tachycardia is more commonly observed due to the compensatory response to decreased cardiac output and decreased stroke volume. The sympathetic nervous system is activated, leading to an increase in heart rate as a compensatory mechanism to maintain cardiac output.

C. Flattened neck veins are not consistent with cardiac tamponade. In cardiac tamponade, jugular venous distention (JVD) is typically observed due to increased venous pressure resulting from impaired right ventricular filling. The presence of JVD is an important clinical finding in cardiac tamponade and can help differentiate it from other causes of shock.

D. Sudden lethargy can occur in various medical emergencies, including cardiac tamponade, but it is not a specific or diagnostic finding for this condition. In cardiac tamponade, symptoms may include dyspnea, chest pain, hypotension, and signs of decreased cardiac output such as cool extremities and altered mental status. However, sudden lethargy alone may not be specific enough to confirm cardiac tamponade.

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Which action should the nurse take first when the low pressure alarm sounds for a patient who has an arterial line in the left radial artery?

Nursing Test Bank

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