If parenteral bethanechol chloride is prescribed for urinary retention, how should the nurse administer this medication?

Bethanechol chloride is a medication primarily used to stimulate bladder contractions in individuals experiencing urinary retention. The correct route of administration for parenteral formulations of this medication is subcutaneously. This method allows the drug to be absorbed directly into the systemic circulation while also providing an effective means to stimulate the detrusor muscle in the bladder.

When administering medications like bethanechol, understanding how the drug works in the body is critical. Bethanechol acts as a muscarinic agonist, mimicking the action of acetylcholine, which helps in contractions of the bladder. Administering it subcutaneously allows the drug to have a relatively quick onset of action, providing relief for patients with urinary retention by promoting bladder emptying.

Other administration routes, such as orally, intramuscularly, or intravenously, do not align with standard practice for this medication. Oral administration would not be suitable for parenteral forms, and intramuscular or intravenous routes are typically reserved for medications that require a rapid effect or specific therapeutic effects that bethanechol does not necessitate in this context.