A community health nurse is teaching a group of first responders about triaging during a mass casualty incident. The nurse should explain that which approach should be followed during triage?

Extended-release formulations utilize a specialized matrix to ensure the steady physiological release of a drug over a 24-hour period. Crushing these medications causes dose dumping, where the total therapeutic concentration is released simultaneously into the systemic circulation. This rapid absorption triggers profound hypotension and reflex tachycardia, potentially leading to myocardial ischemia or cerebrovascular collapse.

Rationale:

A. Taking no action is a violation of safety standards and constitutes clinical negligence by the supervising nurse. Crushing a long-acting calcium channel blocker is a medication error that places the client at risk for severe adverse events. The RN must intervene immediately to ensure client safety and prevent the administration of a compromised dose.

B. Assessing the blood pressure is an important follow-up step if a medication has already been administered improperly. However, the first priority is preventing administration before the error occurs to avoid a pharmacological emergency. Immediate verbal correction of the unsafe practice is the primary nursing intervention required to protect the patient.

C. This is the priority action because nifedipine XL is a sustained-release medication that must remain intact to function safely. Crushing the pill destroys the delivery mechanism, leading to a lethal dose of medication being absorbed at once. The RN has a professional responsibility to halt an incorrect procedure and provide immediate education to the LPN.

D. Providing pudding or other soft foods is a common strategy for assisting clients with oropharyngeal dysphagia who have difficulty swallowing medications. However, adding pudding does not change the fact that this specific drug is strictly contraindicated for crushing or alteration. The nurse must instead request a liquid formulation or an immediate-release alternative from the healthcare provider.

Thrombocytopenia is characterized by reduced platelet count <150000/mm3 causing impaired primary hemostasis. Bone marrow suppression, petechiae, mucosal bleeding, and prolonged bleeding time occur, increasing hemorrhage risk with minor trauma including invasive procedures like rectal instrumentation.

Rationale:

A. Rectal temperature is not specifically contraindicated after an ileostomy because the rectum is typically bypassed but not traumatized. Risk is lower unless active inflammation or surgical complications exist. Focus is on stoma care and preventing infection and skin breakdown.

B. Rectal temperature is contraindicated in thrombocytopenia due to high risk of mucosal trauma and bleeding. Fragile rectal mucosa can easily hemorrhage with minor insertion. Avoid all rectal procedures to prevent hemorrhage and worsening platelet deficiency complications.

C. A productive cough with oxygen therapy does not contraindicate rectal temperature measurement. There is no direct bleeding or mucosal integrity issue. Priority is maintaining airway clearance and adequate oxygenation while monitoring respiratory status, not avoiding rectal routes.

D. Hypothermia does not inherently contraindicate rectal temperature measurement; in fact, rectal temperature may provide accurate core readings. Care focuses on gradual rewarming and preventing complications like arrhythmias and metabolic acidosis, not bleeding risk.