A client with acute respiratory distress syndrome (ARDS) shows no improvement despite increases in concentration in oxygen administered. What intervention should the nurse attempt which may improve ventilation-perfusion matching?

Prone Position

Positioning supine with head elevated to 30-45 degrees

Infusion of Albumin

Transfusion of PRBC

Answer and Explanation

The Correct Answer is A

A. Prone positioning involves turning the patient onto their abdomen to improve ventilation-perfusion matching by redistributing ventilation to the dorsal lung regions, where perfusion is typically better in ARDS patients.

B. Semi-recumbent positioning may be used to prevent aspiration and reduce the risk of VAP but is not as effective as prone positioning for improving V/Q matching.

C. Albumin infusion is not specific interventions for improving ventilation-perfusion matching in ARDS and should be considered based on other clinical indications.

D. Transfusion of packed red blood cells (PRBC) may be indicated in cases of severe anemia or hypoxemia due to inadequate oxygen-carrying capacity. However, it is not a primary intervention for improving ventilation-perfusion matching in ARDS

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Correct Answer is B

Explanation

B. Right-sided heart failure leads to congestion of the systemic venous circulation, resulting in increased central venous pressure (CVP). Elevated CVP is a hallmark sign of right-sided heart failure and is often used clinically to assess right ventricular preload and volume status.

A. BNP is a hormone secreted by the heart in response to increased ventricular stretch and volume overload, and its levels are usually elevated in heart failure, including both left-sided and right-sided heart failure.

C. Specific gravity refers to the concentration of solutes in urine and is often used as a measure of urine concentration.

D. Pulmonary artery wedge pressure (PAWP) is a measure of left atrial pressure and left ventricular end- diastolic pressure. In right-sided heart failure, the primary hemodynamic abnormality is congestion of the systemic venous circulation, rather than elevated left-sided pressures.

A. Provide 02 at 100% per non-rebreather mask. B. Initiate continuous electrocardiogram (ECG) monitoring C. Draw blood to type and crossmatch for transfusions. D. Insert two large-bore IV catheters.

Correct Answer is A

Explanation

A The first intervention should be to ensure adequate oxygenation, as hypoxia can exacerbate shock. Therefore, providing oxygen at 100% via a non-rebreather mask is the most critical initial step. This intervention helps to maximize the amount of oxygen delivered to the patient's lungs and subsequently to the rest of the body, supporting vital organ function while further assessments and interventions are prepared.

B Continuous ECG monitoring allows for the assessment of the patient's heart rhythm, rate, and any signs of dysrhythmias or cardiac ischemia. This intervention is important for detecting any life- threatening arrhythmias, such as ventricular tachycardia or fibrillation, which may require immediate intervention. While ECG monitoring is important, it may not be the highest priority intervention.

C Drawing blood for type and crossmatch is important for preparing for potential blood transfusions if significant blood loss is suspected. However, this intervention may take some time to process, and immediate stabilization of the patient's condition is paramount.

D Large-bore IV catheters allow for rapid infusion of fluids to restore intravascular volume and improve tissue perfusion. This intervention is critical for stabilizing the patient's hemodynamic status and takes precedence in the management of shock. However, oxygenation should take priority.

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A client with acute respiratory distress syndrome (ARDS) shows no improvement despite increases in concentration in oxygen administered. What intervention should the nurse attempt which may improve ventilation-perfusion matching?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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