A nurse is reviewing the medication record of a client who has hypertension. Which of the following medications should the nurse administer to lower the client's blood pressure?

A. Assist the client to a left lateral position. The preferred position for vaginal suppository insertion is the dorsal recumbent (lying on the back with knees bent) or the lithotomy position. The left lateral position is typically used for rectal suppository administration, not vaginal medication insertion.

B. Insert the suppository along the posterior wall of the vaginal canal. The suppository should be inserted along the posterior vaginal wall, as this allows for proper absorption and helps ensure the medication remains in place. The client should be advised to lie down for at least 10-15 minutes after insertion to prevent the suppository from slipping out.

C. Apply a light coating of petroleum jelly to the suppository. Petroleum jelly should never be used as it can interfere with medication absorption and may break down the suppository. If lubrication is needed, a small amount of water-soluble lubricant (e.g., KY Jelly) can be applied to facilitate insertion.

D. Put on sterile gloves before handling the suppository. Clean gloves (not sterile gloves) are sufficient for vaginal suppository administration. The vaginal canal is not a sterile environment, so strict aseptic technique is not required. However, proper hand hygiene and glove use are essential to prevent contamination and infection.

A. Premedicate the client with diphenhydramine. Premedicating with diphenhydramine is not necessary unless the client has a history of mild allergic reactions to erythromycin. Erythromycin is a macrolide antibiotic and does not have significant cross-reactivity with penicillin, making premedication unnecessary.

B. Request a different route of administration from the provider. Changing the route of administration does not address concerns about allergy. Erythromycin is well tolerated in clients with a penicillin allergy, and there is no indication that a different route would be required unless the client has difficulty swallowing or gastrointestinal intolerance.

C. Administer the medication to the client. Erythromycin belongs to the macrolide class and is commonly prescribed as an alternative for clients allergic to penicillin. There is no cross-reactivity between macrolides and penicillins, making erythromycin a safe and effective option for treating bacterial infections in these clients.

D. Request a different medication from the provider. There is no need to request an alternative medication unless the client has a known allergy to erythromycin. Since macrolides are safe for clients with penicillin allergies, withholding the medication without a valid reason could delay necessary treatment.