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.

Bethanechol is not indicated for the relief of severe pain following a transurethral resection of the prostate (TURP). Pain management for postoperative discomfort typically involves analgesics such as opioids or nonsteroidal anti-inflammatory drugs (NSAIDs), depending on the severity of pain. Therefore, this option is incorrect.

B) Frequent episodes of painful urination:
While frequent episodes of painful urination may occur after a TURP due to irritation of the urinary tract, bethanechol is not typically administered to address this symptom. Painful urination is often managed with analgesics and may improve as the urinary tract heals. Therefore, this option is incorrect.

C) An inability to void:
This is the correct response. Bethanechol is a cholinergic agonist that stimulates bladder contraction and can be used to treat urinary retention or an inability to void following surgical procedures such as TURP. By increasing bladder tone and promoting urination, bethanechol helps relieve urinary retention and prevents complications associated with prolonged bladder distension.

D) Bladder spasms:
While bladder spasms may occur postoperatively following a TURP, bethanechol is not typically administered to address this symptom. Bladder spasms are often managed with anticholinergic medications or muscle relaxants to reduce involuntary contractions of the bladder. Therefore, this option is incorrect.”