HESI RN Dosage Calculations Exam Essential Pharmacology Prep for Nursing Students 2025 Edition

The HESI RN Dosage Calculations exam, part of Elsevier's Health Education Systems Incorporated (HESI) suite for Registered Nursing (RN) programs, is a focused 55-question assessment evaluating proficiency in safe medication administration through mathematical computations. This timed (90-minute) multiple-choice and calculation-based test covers core areas like oral and parenteral dosages, IV drip rates, heparin infusions, body surface area (BSA) for chemotherapy, and pediatric/newborn dosing—using formulas such as desired dose (D) = ordered dose (O) × stock strength, or flow rate = (volume × drop factor) / time. Scenarios include converting mg to mcg for insulin (e.g., 0.5 units/kg for sliding scale), calculating TPN rates, and adjusting for renal impairment. Aligned with NCLEX-RN standards, it emphasizes error prevention and critical thinking; a 90%+ score is often required for progression. Ideal for ADN/BSN students, preparation draws from the HESI Case Studies book, Quizlet flashcards (e.g., 200+ questions), and apps like DosageCalc, with users achieving mastery after 10–20 hours of practice. Available via HESI Compass for proctored or self-paced modes, it's a key remediation tool boosting clinical confidence in hospital settings.