A client with a medical diagnosis of acute respiratory distress syndrome (ARDS) is being placed in the prone position. The nurse explains to family members that, "This will help improve ventilation by:
allowing undamaged areas in the lower part of the lungs to be ventilated."
relieving pressure on the diaphragm and allowing expansion."
decreasing pressure to the back of the rib cage."
snifting fluid into the back area of the lungs.'
The Correct Answer is A
A. Allowing undamaged areas in the lower part of the lungs to be ventilated: The prone position is commonly used in patients with acute respiratory distress syndrome (ARDS) to improve oxygenation and ventilation. In ARDS, the lung tissue is often damaged, particularly in the dorsal (back) regions of the lungs, due to gravity and ventilation-perfusion mismatch. By placing the patient in the prone position, gravity helps redistribute the blood flow and improve ventilation to the posterior (lower) parts of the lungs, which are typically under-ventilated in the supine position. This positioning allows healthier or less-damaged areas of the lungs to receive better airflow, improving overall oxygenation.
B. Relieving pressure on the diaphragm and allowing expansion: While the prone position does shift pressure away from certain areas, its primary benefit is not related to relieving pressure on the diaphragm. The diaphragm, while somewhat affected by body position, is not the key structure being targeted for ventilation improvement. The main goal of prone positioning is to improve lung aeration in areas affected by ARDS, not directly to relieve diaphragm pressure.
C. Decreasing pressure to the back of the rib cage: The prone position does not specifically target reducing pressure to the back of the rib cage. Although it changes how pressure is distributed across the body, the main goal is to facilitate better ventilation and perfusion to the posterior lung regions, not necessarily to reduce pressure on the rib cage itself.
D. Sniffing fluid into the back area of the lungs: This option is unclear and not accurate. The prone position does not "sniff" fluid into the lungs; rather, it helps to redistribute fluid and improve the ventilation of the lung areas that are less affected by edema or inflammation in ARDS. The goal is to improve the ventilation/perfusion ratio and prevent further collapse of lung tissue.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. A systolic murmur: A systolic murmur is often associated with valvular heart disease, particularly mitral regurgitation, which can sometimes result from papillary muscle dysfunction after a myocardial infarction. However, a systolic murmur is not a typical or immediate complication following an anterior-lateral wall MI. The focus in the early hours after an MI should be on more acute complications, such as dysrhythmias and hemodynamic stability, rather than a murmur, which may develop more gradually over time.
B. Ventricular dysrhythmias: Ventricular dysrhythmias are one of the most common and life-threatening complications in the immediate hours following an acute myocardial infarction (MI), especially with an anterior-lateral wall MI. These dysrhythmias occur due to the electrical disturbances caused by myocardial injury and ischemia. The heart muscle becomes more susceptible to abnormal electrical activity after the infarction, and monitoring for ventricular tachycardia or fibrillation is crucial. These arrhythmias can lead to sudden cardiac arrest, which is why they are a high priority for monitoring in the immediate post-MI period.
C. A pericardial friction rub: A pericardial friction rub is a sign of pericarditis, which can occur after an MI, particularly several days to a week later, rather than in the immediate post-MI period. While pericarditis is a possible complication of MI, it is less likely to present immediately after the infarction, especially in the first few hours. The nurse should monitor for pericarditis, but it is not as high a priority as dysrhythmias during the first hours after MI.
D. Renal insufficiency: While renal insufficiency can develop as a result of poor perfusion or shock following a myocardial infarction, it is not one of the most immediate or common complications to watch for in the first hours after an anterior-lateral MI. The primary concern in this acute phase is monitoring for cardiovascular complications, such as dysrhythmias, rather than renal function. Renal insufficiency would be a secondary concern, particularly if the patient is hypotensive or experiencing other signs of multi-organ involvement.
Correct Answer is ["20"]
Explanation
Step-by-Step Solution:
Calculate the volume of medication to administer.
The available medication is 125 mg/5 mL.
We need to administer 500 mg.
To find the volume, we can set up a proportion:
125 mg / 5 mL = 500 mg / x mL
Cross-multiplying:
125x = 500 x 5
Solving for x:
x = (500 x 5) / 125 = 20 mL
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