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The nurse is caring for a client who is having chest pain. The healthcare provider prescribes an infusion of nitroglycerin. The initial dose is 12 mcg/min. The nitroglycerin is dispensed at a concentration of 100 mg/ 250 mL. How many mL/hr will the nurse set the infusion pump? (Round rate to the nearest tenth. Only enter numbers and decimals. Do not enter any letters in your answer.)
Answer and Explanation

The Correct Answer is ["1.8"]

Infusion rate (mL/hr) = Desired dose (units/hr) / Concentration of nitroglycerin (units/mL)

First, calculate the concentration of nitroglycerin in the IV bag:

  • 100 mg / 250 mL = 0.4 mg/mL

Next, convert the desired dose from mcg/min to mg/hr:

  • 12 mcg/min  60 min/hr = 720 mcg/hr = 0.72 mg/hr

Finally, plug the values into the formula:

  • Infusion rate = 0.72 mg/hr / 0.4 mg/mL = 1.8 mL/hr


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Related Questions

Correct Answer is B

Explanation

A. Malnutrition and acute pancreatitis are not primary causes of chronic pancreatitis. While acute pancreatitis can lead to chronic conditions, malnutrition is not a common direct cause.
B. Heavy alcohol consumption and smoking are well-established risk factors for chronic pancreatitis. These lifestyle factors can cause inflammation and damage to the pancreas over time.
C. Caffeine consumption does not have a direct correlation with chronic pancreatitis. Cigarette smoking is a risk factor, but caffeine is not.
D. Acute hepatitis is not a common cause of chronic pancreatitis. While alcohol consumption is a risk factor, the presence of acute hepatitis is not typically a direct cause.

Correct Answer is D

Explanation

A. Anuria, or the absence of urine output, occurs in later stages of shock when there is significant renal hypoperfusion. It is not an early indicator of shock.
B. Hypotension is a classic sign of shock, but it generally occurs after compensatory mechanisms have failed. It is not the earliest indicator.
C. A decreased level of consciousness occurs later in the progression of shock due to decreased cerebral perfusion. It is not the earliest sign of shock.
D. Increased respiratory rate is often the earliest indicator of shock. As the body attempts to compensate for decreased oxygen delivery and tissue perfusion, the respiratory rate increases to enhance oxygenation and eliminate excess carbon dioxide. This compensatory mechanism is typically one of the first signs that shock is developing.

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