The nurse is caring for a client diagnosed with pneumonia. Which medication will the nurse administer for treatment of client's problem of ineffective airway clearance?

dextromethorphan 10 mg PO q 4 r

cromolyn MDI 2 puffs daily

guaifenesin 200 mg PO q 4 hr

methylprednisone 30 mg IV BID

Answer and Explanation

The Correct Answer is C

A. Dextromethorphan 10 mg PO q 4 hr: Dextromethorphan is a cough suppressant, and while it may be useful for controlling a dry, non-productive cough, it is not appropriate for ineffective airway clearance in pneumonia. In fact, suppressing the cough in pneumonia could prevent the patient from clearing mucus from the airways, exacerbating the problem. It is more appropriate for a client who has a dry cough without significant mucus production.

B. Cromolyn MDI 2 puffs daily: Cromolyn is a mast cell stabilizer used for the prevention of asthma and allergy symptoms, and it is not typically used for treating pneumonia or ineffective airway clearance. It works by preventing the release of inflammatory mediators in response to allergens, but it does not address the issue of clearing mucus in the airways during a bacterial infection like pneumonia.

C. Guaifenesin 200 mg PO q 4 hr: Guaifenesin is an expectorant that helps loosen and thin mucus in the airways, making it easier for the client to cough up and clear secretions. This is the most appropriate medication for addressing ineffective airway clearance in a client with pneumonia, as the goal is to facilitate the removal of mucus and improve respiratory function. Guaifenesin does not suppress the cough reflex but instead promotes productive coughing, which is essential for clearing the airways during a respiratory infection like pneumonia.

D. Methylprednisolone 30 mg IV BID: Methylprednisolone is a corticosteroid used to reduce inflammation and control severe allergic or inflammatory conditions. While corticosteroids may be used in certain cases of pneumonia (e.g., in cases of significant inflammation or an underlying condition like COPD), they are not the first-line treatment for ineffective airway clearance. The priority in this case is to promote mucus clearance, which is better addressed by guaifenesin.

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Correct Answer is B

Explanation

A. and record vital signs every 4 hours:
While vital signs are important, monitoring every 4 hours may not be frequent enough in an intensive care setting, especially for a client requiring mechanical ventilation. Vital signs, including blood pressure, heart rate, respiratory rate, and oxygen saturation, should be monitored more frequently (at least every hour) to detect changes in the patient's condition, particularly since positive pressure ventilation can significantly affect circulatory status.

B. Intake and output hourly:
In acute respiratory distress syndrome (ARDS), the client may require mechanical ventilation to support breathing. Positive pressure ventilation, while essential for improving oxygenation, can increase intrathoracic pressure, which may impair venous return to the heart, decreasing cardiac output. As a result, it is critical to monitor the fluid balance closely, as fluid overload can worsen the patient's condition and contribute to pulmonary edema or other complications. Hourly assessment of intake and output (I&O) helps the nurse monitor renal function, fluid status, and cardiac output. Maintaining a proper balance of fluids is crucial in managing ARDS and its associated complications.

C. Heart and lung sounds every shift:
A shift assessment of heart and lung sounds is useful but is not frequent enough to detect early changes in a client with decreased cardiac output or other complications related to mechanical ventilation. More frequent monitoring of lung sounds and heart function may be necessary, particularly in clients at risk of ventilator-associated complications like ventilator-associated pneumonia (VAP), pulmonary edema, or arrhythmias.

D. Level of consciousness every shift:
Monitoring level of consciousness is important, especially in clients with ARDS and mechanical ventilation, as changes in consciousness can indicate worsening hypoxia or hypercapnia. However, this assessment is less directly related to the immediate concern of decreased cardiac output, which can be more effectively managed through continuous monitoring of fluid status and vital signs rather than consciousness alone. Though consciousness should be monitored regularly, I&O hourly would be more crucial in this context for managing cardiac output.

A. pH 7.33, PaCO2 35 mmHg, Pa02 78 mmHg, HCO3 20 mEq/L. B. heart rate 80 and respiratory rate 20. C. 02 saturation of at least 94%. D. sodium 135 mg/di. and potassium 4.8 mg/dL.

Correct Answer is C

Explanation

A. pH 7.33, PaCO2 35 mmHg, PaO2 78 mmHg, HCO3 20 mEq/L:
This answer choice indicates respiratory acidosis (pH < 7.35, low bicarbonate), but the goal in acute respiratory failure is not just to adjust the pH alone; the more immediate concern is correcting oxygenation. The PaO2 of 78 mmHg is below the normal range (80-100 mmHg), indicating hypoxemia that should be corrected first. The goal should be to improve PaO2 to acceptable levels (≥80 mmHg) and achieve adequate oxygen saturation. This ABG result does not fully align with the immediate goals of treatment.

B. Heart rate 80 and respiratory rate 20:
While normal vital signs like heart rate and respiratory rate are important, they are not the primary goal of treatment in acute respiratory failure. The focus during ventilator support is to improve oxygenation and ventilation rather than simply achieving normal heart and respiratory rates. In acute respiratory failure, abnormal heart and respiratory rates are often a result of hypoxia or hypercapnia (high CO2), so normalizing oxygenation and carbon dioxide levels is more critical initially.

C. O2 saturation of at least 94%:
The primary goal in acute respiratory failure is to maintain adequate oxygenation. In this context, the goal of ventilator support is to correct hypoxemia (low blood oxygen levels) and restore normal oxygen saturation. A target oxygen saturation of at least 94% is commonly considered appropriate for most patients in acute respiratory failure to ensure that tissues are receiving enough oxygen to prevent organ damage. This is a key aspect of managing respiratory failure and ensuring adequate tissue perfusion. Oxygen saturation below 90% is typically considered to indicate a severe level of hypoxemia, requiring prompt intervention.

D. Sodium 135 mg/dL and potassium 4.8 mg/dL:
While electrolyte levels are important to monitor in any critically ill patient, the main goal of treatment in acute respiratory failure is improving oxygenation and ventilation rather than focusing specifically on normalizing sodium or potassium levels. Correcting imbalances in electrolytes can be part of overall care, but it is not the primary objective in this situation. Oxygenation (as measured by PaO2 and O2 saturation) takes priority over correcting individual electrolytes.

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Arterial Blood Gases
pH	7.35-7.45
PaCO2	35-45mmHg
PaO2	80-100mmHg
HCO3-	22-26 mEq/L
O2 Saturation	>95%
Chemistry
BUN	8-21mg/dl
Creatinine	0.5-1.2mg/dl
Na	135-145 mEq/L
K	3.5-5.3 mEq/L
Cl	97-107 mEq/L
CO2	22-26 mEq/L
Ca	8.2-10.2 mg/dl
Glucose	65-99 mg/dl
Mg	1.7-2.2 mg/dl
PO4	2.5-4.5 mg/dl

The nurse is caring for a client diagnosed with pneumonia. Which medication will the nurse administer for treatment of client's problem of ineffective airway clearance?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

Correct Answer is C

Explanation

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