N120 MCA I – Exam 4 Medications & Lab Values (100 Questions) | Electrolytes, Glaucoma, Sinusitis | Nursing

This in-depth exam preparation document contains 100 exam-style questions and detailed answers tailored for the N120 course (Medical Clinical Applications I – MCA I), focused on medications and lab values. It serves as a complete study guide for nursing students preparing for internal assessments, clinical evaluations, or licensure exams in the 2025/2026 academic year. Topics covered include normal and abnormal ranges for electrolytes such as sodium, potassium, calcium, magnesium, and phosphorus, as well as renal markers like BUN and creatinine. The guide explains the physiological effects of electrolyte imbalances, including overexcitation and overrelaxation of cells, and their clinical implications. It also details water-weight conversions and the pharmacologic action of key medications like Lasix, calcium gluconate, bisphosphonates, and treatments for conditions such as glaucoma, Meniere’s disease, sinusitis, and allergic rhinitis. Ideal for students in nursing, pre-nursing, pharmacology, or clinical science programs, this guide provides not only factual recall but also insight into medication mechanisms and care planning. It is especially useful for students preparing for the NCLEX or similar clinical competency exams. Keywords: medications, lab values, nursing exam, N120, MCA I, electrolyte imbalances, pharmacology, calcium levels, potassium levels, magnesium levels, BUN, creatinine, glaucoma drugs, Meniere’s disease, sinusitis treatment, nursing pharmacology, NCLEX prep, clinical labs, medical-surgical nursing