The nurse inadvertently makes a med error gives a client a double dose of a prescribed medication. What action by the nurse is priority?

A. Anticoagulants.: Anticoagulants such as heparin and warfarin are high-alert medications because dosing or administration errors can lead to life-threatening bleeding or thromboembolic events. They require close monitoring of coagulation parameters.

B. Chemotherapeutic agents.: Chemotherapy drugs are classified as high-alert due to their narrow therapeutic index and potential for severe toxicity. Even small dosing or timing errors can cause significant harm, including bone marrow suppression and organ damage.

C. Opioids.: Opioids are high-alert medications because of their potential to cause respiratory depression, sedation, and overdose when administered incorrectly. Careful dosage calculation and monitoring are essential, particularly in opioid-naïve clients.

D. Antihistamines.: Antihistamines are generally considered low-risk medications and are not classified as high-alert. While they may cause drowsiness or mild anticholinergic effects, these are rarely life-threatening, making them comparatively safer.

A. Giving Lasix 20mg IV when Lasix 20mg PO was ordered.: Administering a medication by the wrong route is considered a medication error because IV and PO routes differ in absorption rate and potency. Giving Lasix intravenously instead of orally could result in rapid diuresis, electrolyte imbalance, or hypotension, posing a safety risk to the patient.

B. Administering an 1800 dose at 1820.: A 20-minute delay is within an acceptable time frame for most scheduled medications, as institutional policies often allow a 30-minute window before or after the scheduled time.

C. Measuring 5 mL of vancomycin hydrochloride when 5 mL is ordered.: Accurately measuring and administering the exact ordered amount follows correct medication administration practices. This action reflects adherence to the order, not an error.

D. Giving 2 tablets of Clindamycin 500mg when Clindamycin 1 gram is ordered.: This is appropriate because two 500 mg tablets equal the prescribed 1 gram dose. Administering the correct total dose, even in divided tablet form, is not an error.