A nurse is caring for a client who was admitted for atrial fibrillation rapid ventricular rate of 130 beat/min with confusion. The client's blood pressure is 87/50. What order should the nurse expect to receive from the provider?

Tell the patient to bare down

Administer Lidocaine drip

Administer Amiodarone drip

Administer a beta blocker

Answer and Explanation

The Correct Answer is C

C. Amiodarone is a Class III antiarrhythmic medication commonly used for the acute management of atrial fibrillation with a rapid ventricular rate. It works by blocking multiple ion channels, prolonging the action potential duration, and slowing conduction in the atria and ventricles. Amiodarone is often used when other interventions such as vagal maneuvers or beta blockers are ineffective or contraindicated. In this scenario, where the patient is hypotensive and symptomatic, intravenous amiodarone may be administered to control the ventricular rate and stabilize hemodynamics

A. Bearing down, or the Valsalva maneuver, is a vagal maneuver that can sometimes help slow the heart rate in certain arrhythmias by increasing parasympathetic tone. However, it may not be effective or safe in all situations, especially if the patient is hypotensive or confused. In this scenario, immediate pharmacological intervention is likely needed to control the heart rate and stabilize hemodynamics.

B. Lidocaine is not typically used to treat atrial fibrillation with a rapid ventricular rate. Lidocaine is a Class IB antiarrhythmic medication primarily used for the treatment of ventricular arrhythmias, such as ventricular tachycardia and ventricular fibrillation. It is not considered a first-line agent for atrial fibrillation and may not effectively control the ventricular rate in this situation.

D. While beta blockers are commonly used for rate control in atrial fibrillation, they may not be the best choice in this scenario where the patient is hypotensive and symptomatic. Beta blockers can further decrease blood pressure and exacerbate hypotension, especially in patients with compromised hemodynamics. In such cases, other rate-controlling agents like calcium channel blockers or amiodarone may be preferred.

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Correct Answer is B

Explanation

B. A client who is postoperative with shallow respirations at a rate of 9/min is likely not adequately eliminating carbon dioxide from their body due to hypoventilation. This retention of carbon dioxide can lead to an increase in the partial pressure of CO2 in the blood, causing an acidotic state.

A. Metabolic acidosis results from an accumulation of acids in the body or a loss of bicarbonate. Hypoventilation leading to respiratory acidosis does not directly cause metabolic acidosis.

C. Respiratory alkalosis occurs when there is excessive elimination of CO2 from the body, leading to decreased arterial carbon dioxide levels (hypocapnia) and an increase in pH. Shallow respirations and decreased respiratory rate are more consistent with hypoventilation and respiratory acidosis rather than hyperventilation and respiratory alkalosis.

D. Metabolic alkalosis results from excessive loss of acids or increased bicarbonate levels in the body. Hypoventilation leading to respiratory acidosis does not directly cause metabolic alkalosis.

A. Left ventricular failure B. Fluid overload C. Hypovolemia D. Intracardiac shunt

Correct Answer is C

Explanation

C. Hypovolemia, or low blood volume, can lead to decreased venous return to the heart and reduced filling pressures. Consequently, CVP may decrease in hypovolemic states. Low CVP may indicate inadequate preload and reduced cardiac output, which are characteristic of hypovolemia.

A. Left ventricular failure typically results in elevated filling pressures rather than low CVP. In left ventricular failure, blood backs up into the pulmonary circulation, leading to increased pulmonary venous pressure and potentially elevated pulmonary capillary wedge pressure (PCWP), which is a surrogate marker for left atrial pressure. This elevated pressure is reflected in the CVP as well, resulting in increased CVP rather than low CVP.

B. Fluid overload typically results in elevated filling pressures and increased CVP rather than low CVP. Excess fluid volume increases venous return to the heart, leading to increased pressure within the central veins and elevated CVP.

D. Intracardiac shunts may cause alterations in cardiac pressures, but they typically do not result in consistently low CVP. Depending on the type and severity of the shunt, the direction and magnitude of pressure changes may vary. However, in the absence of other pathophysiological factors, intracardiac shunts are less likely to cause consistently low CVP.

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A nurse is caring for a client who was admitted for atrial fibrillation rapid ventricular rate of 130 beat/min with confusion. The client's blood pressure is 87/50. What order should the nurse expect to receive from the provider?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is postoperative and whose respirations are shallow and 9/min. Which of the following acid-based imbalances should the nurse identify the client as being at risk for developing initially?

Correct Answer is B

Explanation

A nurse is evaluating the central venous pressure (CVP) of a client who has sustained multiple traumas. Which of the following interpretations of a low CVP pressure should the nurse make?

Correct Answer is C

Explanation

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