Want to test your pharmacology knowledge before the CMSRN exam? Below are free sample flashcards from the 50-card pharmacology section of our 1050-card CMSRN (Certified Medical-Surgical Registered Nurse) deck, which covers Hepatic Encephalopathy, SABA, ICS, Entresto and more.
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A nurse is titrating Lactulose for a patient with Grade II Hepatic Encephalopathy. Which clinical finding indicates the medication is achieving its therapeutic goal?
Show answer →The therapeutic goal of Lactulose is 2 to 3 soft, acidic bowel movements per day. Mechanism: Lactulose is broken down by bacteria in the colon into lactic and acetic acids, lowering pH. This ""traps"" ammonia (NH3) by converting it to ammonium (NH4+), which is non-absorbable and excreted. **Exam Tip:** MSNCB often tests that the goal is NOT diarrhea, but specific stool frequency. Improved neuro status (decreased asterixis, better orientation) is the ultimate clinical goal, but the titration is based on stool output.
A patient with COPD is prescribed Albuterol (SABA) and Fluticasone (ICS) MDIs. In what order should the nurse instruct the patient to self-administer these medications, and why?
Show answer →Administer the Albuterol first, wait 5 minutes, then administer the Fluticasone. Rationale: The SABA induces rapid bronchodilation, which increases the surface area of the airways and allows for deeper penetration and better deposition of the inhaled corticosteroid (ICS) into the distal lung tissue. Key Exam Tip: MSNCB often tests the """"bronchodilator first"""" rule to maximize therapeutic efficacy.
A patient with HFrEF is being switched from Lisinopril to Sacubitril/Valsartan (Entresto). What is the mandatory nursing action regarding the timing of the first dose?
Show answer →The nurse must ensure a 36-hour ""washout period"" between the last dose of the ACE inhibitor (Lisinopril) and the first dose of the ARNI (Sacubitril/Valsartan). Rationale: Concurrent use or insufficient washout increases the risk of life-threatening angioedema due to dual inhibition of neprilysin and ACE, both of which degrade bradykinin. Note: This washout is NOT required when switching from an ARB to an ARNI. MSNCB Exam Tip: Distinguish between ACEI-to-ARNI (needs washout) and ARB-to-ARNI (no washout required).
A patient receives Insulin Lispro at 0730. When is the risk for hypoglycemia highest, and what must the nurse verify before administration?
Show answer →Peak: 1–2 hours (0830–0930). Verification: Ensure a meal tray is physically present or the patient will eat within 15 minutes. Lispro is rapid-acting with an onset of 10–30 mins. MSNCB Strategy: Distinguish ""onset"" (when to eat) from ""peak"" (highest risk for adverse events).
A patient post-total knee arthroplasty is prescribed scheduled acetaminophen and celecoxib alongside PRN oxycodone. What is the primary clinical rationale for this multimodal approach in 2026 practice?
Show answer →The goal of multimodal analgesia is to target different pain pathways using drugs with distinct mechanisms. This ""opioid-sparing"" effect reduces the total opioid dose required, thereby minimizing opioid-related adverse effects (sedation, ileus, respiratory depression) while improving overall pain control. Exam Tip: MSNCB emphasizes that non-opioids should be the foundation of pain management unless contraindicated.
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Try 30 free CMSRN cards firstThe full CMSRN deck contains 1050 flashcards, and 50 of them focus on pharmacology. This page shows 5 free samples.
Our CMSRN deck dedicates 50 of 1050 cards (5%) to pharmacology — always cross-check the official MSNCB exam outline for the current blueprint weighting.
Yes — the samples on this page are free, and the CMSRN preview page has 30 more free cards. Full access to all 1050 cards is a one-time $7.
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