A client is ordered to receive a bolus of 200 mL of NSS in 25 minutes. At what rate should the nurse set the IV pump?

Answer and Explanation

The Correct Answer is ["480"]

To calculate the infusion rate, you need to determine the total volume to be infused and the time over which it will be infused.

Total volume to be infused = 200 mL

Time for infusion = 25 minutes

Infusion rate = Total volume / Time Infusion rate = 200 mL / 25 minutes = 8 mL/min

To convert this to mL/hour (since infusion pumps are typically set in mL/hour): Infusion rate = 8 mL/min × 60 minutes/hour = 480 mL/hour

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Correct Answer is A

Explanation

A. Crackles heard at the lung bases: An S4 heart sound often indicates left ventricular hypertrophy or decreased compliance of the left ventricle, commonly seen in conditions like heart failure. Crackles in the lungs can suggest pulmonary congestion related to heart failure, making this the most relevant correlation.

B. Dorsalis pedis pulses +1: A weak pulse may indicate peripheral vascular issues, but it doesn't directly correlate with an S4 heart sound.

C. A pericardial friction rub: This is associated with pericarditis and not directly related to the S4 heart sound.

D. Heart rate 50 beats per minute: While bradycardia may be present in various cardiac conditions, it does not specifically correlate with the S4 sound, which is more about ventricular filling pressures.

A. The layers of your heart are weak and thin. B. The pain you have is because your heart valves are damaged." C. Your heart muscle is weak and is not pumping forcefully." D. The pain is caused by decreased oxygen to the heart muscle."

Correct Answer is D

Explanation

A. The layers of your heart are weak and thin: This statement does not accurately address the underlying cause of chest pain in coronary artery disease. Weakness in heart layers is not a common explanation for angina.
B. The pain you have is because your heart valves are damaged: While valve damage can lead to cardiac symptoms, it is not the primary cause of chest pain associated with coronary artery disease, which is more directly related to blood flow issues.

C. Your heart muscle is weak and is not pumping forcefully: This statement could be true in the context of heart failure but does not specifically explain the chest pain associated with coronary artery disease.

D. The pain is caused by decreased oxygen to the heart muscle: This is the most accurate and appropriate response. Chest pain in coronary artery disease, often referred to as angina, typically occurs due to reduced blood flow and, consequently, oxygen delivery to the heart muscle. This explanation helps the client understand the physiological basis of their symptoms.

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A client is ordered to receive a bolus of 200 mL of NSS in 25 minutes. At what rate should the nurse set the IV pump?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is A

Explanation

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Correct Answer is D

Explanation

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