A patient is to receive 900 mg of a drug, supplied as 300 mg tablets. How many tablets should be administered?

Rationale:
A. Administer a counteracting medication: Administering another medication without provider orders can be unsafe and may worsen the patient’s condition. Intervention should follow provider instructions and established protocols.

B. Notify the healthcare provider and report the event to the FDA: The nurse must promptly inform the healthcare provider to ensure appropriate medical management of the adverse drug event. Reporting to the FDA’s MedWatch system also contributes to broader pharmacovigilance and patient safety by documenting potential drug-related risks.

C. Continue monitoring the patient and document the event in the medical record: While ongoing monitoring and documentation are essential, they are part of the overall response but do not replace notifying the provider and regulatory reporting, which are critical steps.

D. Immediately discontinue all medications: Stopping all medications indiscriminately can be dangerous, especially if the patient depends on essential therapies. Only the prescribing provider should adjust or discontinue medications based on assessment and clinical judgment.

Rationale:
A. The dilution: Dilution is considered when preparing medications from concentrated solutions, but it is not represented by "H" in the standard formula.

B. The total quantity: The total quantity refers to the amount available for administration in the medication form, often represented by "Q," not "H."

C. The desired outcome: The desired outcome relates to therapeutic goals but is not part of the formula components.

D. The dose on hand: "H" represents the dose on hand, meaning the strength or concentration of the medication available. This value is used to calculate the exact amount to administer to achieve the desired dose safely.