A client receiving mechanical ventilation has a pH of 7.26, PaCO2 of 68 mm Hg, and a PaO2 of 92 mm Hg. Which intervention should the nurse implement?Reference Range:
Arterial Blood Gas (ABG)
pH [Adult/child: 7.35 to 7.45]
PaCO2 [Adult/child: 35 to 45 mm Hg)
HCO- [Adult/child: 21 to 28 mEq/L (21 to 28 mmol/L)] PaO2 [Adult/child: 80 to 100 mm Hg)

Increase rate of ventilation.

Decrease expiratory flow time.

Increase ventilator tidal volume.

Decrease expiratory pressure.

Answer and Explanation

The Correct Answer is A

Rationale

A. The client's pH is low (acidotic), and the PaCO2 is high (respiratory acidosis). Increasing the rate of ventilation (respiratory rate) can help to decrease PaCO2 by increasing alveolar ventilation, thereby helping to correct respiratory acidosis.

B. Expiratory flow time affects the time available for exhalation. While this may affect the overall mechanics of ventilation, it is not directly targeting the primary issue of elevated PaCO2 and acidosis.

C. Increasing tidal volume increases the volume of air delivered with each breath. This can improve ventilation efficiency but may not address the underlying problem of elevated PaCO2 unless it leads to increased minute ventilation.

D. Expiratory pressure is related to positive end-expiratory pressure (PEEP), which helps maintain alveolar recruitment and improve oxygenation. Decreasing expiratory pressure may not directly address the elevated PaCO2 and acidosis.

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Correct Answer is B

Explanation

Rationale

A. Measuring vital signs, including respiratory rate, heart rate, blood pressure, and oxygen saturation, is important to assess the client's overall status and to determine the severity of the dyspnea. Vital signs provide essential information to guide further interventions. While important, this action may not directly alleviate the client's immediate distress from dyspnea.

B. Placing the client in a high Fowler's position (sitting upright with the head of the bed elevated to 90 degrees) helps to maximize chest expansion and improve lung ventilation. This position can relieve dyspnea by reducing pressure on the diaphragm and improving lung compliance. It is a simple and effective intervention for clients experiencing respiratory distress.

C. While deep breathing exercises are beneficial for promoting lung expansion and improving respiratory function, they may not be appropriate as the first action when the client is already dyspneic. The priority

should be to position the client to alleviate immediate breathing difficulty before initiating exercises that require active participation.

D. Auscultating breath sounds is important for assessing lung function and detecting any abnormalities such as adventitious sounds (e.g., crackles, wheezes). However, this action is secondary to placing the client in a high Fowler's position to relieve dyspnea. Auscultation can be performed after the client's breathing has stabilized.

A. Soak feet daily in hot water no longer than 10 minutes. B. Include no more than 1-2 alcoholic beverages in diet per day. C. Remember exercise will not affect blood glucose levels. D. Keep any wounds covered with an antibiotic ointment.

Correct Answer is B

Explanation

Rationale

A This statement is incorrect for diabetes management. People with diabetes should avoid soaking their feet in hot water, as it can lead to burns and skin damage, which is particularly risky due to potential nerve damage (neuropathy) and poor circulation common in diabetes.

B. This statement demonstrates good understanding. Alcohol can affect blood sugar levels and should be consumed in moderation by people with diabetes. Limiting intake to 1-2 drinks per day (following healthcare provider's advice) is generally recommended to minimize the impact on blood sugar levels and overall health.

C. Exercise is crucial for managing blood glucose levels in people with diabetes. Physical activity helps muscles use glucose for energy and can lower blood sugar levels. Understanding the importance of regular exercise is key for effective diabetes management.

D. While keeping wounds covered is generally good advice to prevent infection, using antibiotic ointment on every wound is not necessary unless specifically advised by a healthcare professional. Proper wound care, including cleaning with mild soap and water, keeping the wound clean and dry, and seeking medical attention for any signs of infection

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Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse observes that a client with ascites is dyspneic. Which action should the nurse implement first?

Correct Answer is B

Explanation

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Correct Answer is B

Explanation

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