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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 C

Explanation

A. Restricting sodium intake is essential in managing ascites and edema in cirrhosis, but it does not directly reduce ammonia levels. Sodium restriction is more related to fluid management rather than ammonia reduction.
B. Administering vitamin K may be necessary for correcting coagulation issues in liver disease, but it does not address the elevated ammonia levels causing encephalopathy.
C. Reducing protein intake is crucial for decreasing ammonia production. In clients with hepatic encephalopathy, proteins are broken down into ammonia, which the impaired liver cannot detoxify effectively, leading to worsened symptoms. Therefore, reducing dietary protein can help lower ammonia levels.
D. Administering diuretics is used to manage fluid retention and ascites in cirrhosis, but it does not directly impact ammonia levels. Diuretics are not the primary intervention for hepatic encephalopathy.

Correct Answer is C

Explanation

A. Increasing fluid intake is not recommended, as clients with Cushing disease often have fluid retention.
B. Decreasing protein intake is not recommended because muscle wasting is a concern in Cushing disease, and adequate protein is necessary to maintain muscle mass.
C. Decreasing carbohydrate intake is recommended because Cushing disease can cause hyperglycemia, and reducing carbohydrates can help manage blood glucose levels.
D. Limiting potassium-rich foods is not advisable as Cushing disease can lead to hypokalemia, and clients may need to increase their potassium intake.

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