Critical Lab Monitoring for a Pneumonia Patient on Gentamicin NCLEX NGN Quiz on Critical Lab Monitoring for a Pneumonia Patient on Gentamicin Topic: Pharmacological Management in Pneumonia System: Renal and Hematological Systems In caring for a 69-year-old female client admitted with pneumonia who is receiving gentamicin, which of the following laboratory values should the nurse prioritize for monitoring? 1. BUN and creatinine 2. Hemoglobin and hematocrit 3. Sodium and potassium 4. Platelet count and clotting time Δ