A nurse is teaching a class about pulmonary circulation. The nurse should include that blood flows from the heart to the lungs from the right ventricle starting from which of the following locations?

Find the concentration of heparin in the solution:

Total heparin (units): 25,000 units

Volume of solution (mL): 500 mL

Heparin concentration (units/mL) = Total heparin (units) / Volume of solution (mL)

Heparin concentration (units/mL) = 25,000 units / 500 mL = 50 units/mL

Set up the flow rate equation:

Desired heparin infusion rate (units/hr): 1600 units/hr

Heparin concentration in solution (units/mL): 50 units/mL

Flow rate (mL/hr): We need to solve for this

Flow rate (mL/hr) = Desired heparin infusion rate (units/hr) / Heparin concentration (units/mL)

Calculate the flow rate (mL/hr):

Flow rate (mL/hr) = 1600 units/hr / 50 units/mL = 32 mL/hr (round to nearest whole number as requested)

Therefore, the nurse should set the IV pump to deliver approximately 32 mL/hr.

A) Take this medication with food:
Captopril is an ACE inhibitor, known to work best on an empty stomach. Food can reduce its absorption, impacting its effectiveness. Thus, while clients can take captopril with or without food, it's generally recommended to take it on an empty stomach for optimal results.

B) Monitor for a cough:
Captopril, an ACE inhibitor, commonly induces a persistent, dry cough due to the accumulation of bradykinin. This side effect can be bothersome and may necessitate discontinuation of the medication. Therefore, patients should be vigilant for the onset of a cough and promptly report it to their healthcare provider.

C) Avoid bananas:
Although captopril can occasionally lead to hyperkalemia, advising patients to avoid bananas specifically may not be necessary. While bananas are potassium-rich, restricting them alone might not significantly impact potassium levels. However, patients should be educated on monitoring potassium intake and informed of potential dietary modifications if hyperkalemia occurs.

D) Hold medication for heart rate less than 100/min:
Captopril is not known to directly affect heart rate. This instruction may be more applicable to medications like beta-blockers, which can lower heart rate as part of their mechanism of action. Therefore, holding captopril for heart rates below 100/min may not be clinically indicated.