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CMSRN: Medication Management

Medication management is central to med-surg nursing and the CMSRN. These questions cover safe administration, monitoring for effects and adverse reactions, high-alert medications, and patient teaching — each with a full rationale.

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  • 📖 Full rationales — why every option is right or wrong

Every CMSRN question is written to the current exam outline for quick learning and a clear pass strategy.

Written and reviewed by the LexPort exam-prep team, led by our Founder & Exam-Prep Lead. LexPort builds certification practice questions — this is exam-preparation material, not medical advice. Last reviewed August 2026.

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Test yourself: Medication Management

Three CMSRN practice questions on medication management — tap an answer for instant feedback. The app has 5,200+, timed and scored.

Question 1

A patient with opioid-naïve metastatic cancer pain is discharged on oxycodone 5mg q4h PRN. Their teenager has a history of ADHD and impulsivity. Which safe storage strategy is most effective?

▸ Why A is the answer

Biometric locks provide maximum security against impulsive misuse by adolescents, per FDA opioid safety guidelines. Combination locks (C) can be cracked; hidden locations risk being found. Pill organizers (D) increase overdose risk by removing safety labeling. Toiletry bags (B) offer no theft deterrence. AMSN emphasizes biometric or keyed storage when minors with behavioral issues reside with controlled substances.

Question 2

A neutropenic patient with a PICC line has a transparent dressing changed. Which technique aligns with evidence-based practice?

▸ Why B is the answer

CDC/SHEA guidelines recommend chlorhexidine for PICC care in neutropenic patients due to superior antimicrobial efficacy. Back-and-forth mechanical cleansing removes biofilm. Povidone-iodine (A) is inferior to chlorhexidine. Alcohol (C) lacks residual activity. Hydrogen peroxide (D) damages skin integrity. The 30-second friction ensures adequate antisepsis, critical for immunocompromised patients.

Question 3

A diabetic patient with heart failure is transferred from ICU to med-surg. The ICU medication list includes sliding-scale insulin and metformin 1000mg BID. The admitting nurse notes serum creatinine rose from 1.2 to 2.1 mg/dL during ICU stay. Which reconciliation action is essential?

▸ Why B is the answer

Metformin is contraindicated in acute kidney injury (creatinine ≥1.5 mg/dL for males) due to lactic acidosis risk per FDA guidelines. Option A ignores the absolute contraindication. Option C is premature without prescriber input. Option D is unsafe since no dose adjustment eliminates AKI risks. Option B prioritizes safety by withholding metformin until renal function stabilizes and specialist input is obtained, consistent with American Diabetes Association recommendations.

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Question 1

During CVAD dressing change, a nurse observes purulent drainage and 2cm erythema. The patient reports tenderness but is afebrile. Which action reflects priority assessment?

  • A) A) Culture the drainage and document characteristics
  • B) B) Measure the erythema and reassess in 4 hours
  • C) C) Palpate the tunneled catheter track for cord-like thickening✓
  • D) D) Assess for systemic signs like chills or hypotension
Show rationale

Cord-like thickening indicates tunnel infection requiring urgent catheter removal. Culture (A) is secondary to assessing infection depth. Measuring erythema (B) delays intervention for advancing infection. Systemic signs (D) are absent per scenario; tunnel infection can exist without them. INS standards mandate tunnel assessment for localized symptoms.

Question 2

A postoperative patient's peripheral IV site has mild edema, skin tautness, and 2°C temperature difference but no pain or redness. The IV flushes easily. Which action is indicated?

  • A) A) Continue infusion and elevate the extremity✓
  • B) B) Remove the catheter and apply a warm compress
  • C) C) Slow the infusion rate and reassess in 1 hour
  • D) D) Document findings and change the dressing
Show rationale

These signs indicate grade 1 infiltration without compromise. Elevation promotes fluid absorption without catheter removal. Removal (B) is premature without pain/skin compromise. Slowing infusion (C) delays intervention for worsening symptoms. Dressing change (D) doesn't address infiltration. INS standards permit continued use for mild cases with monitoring.

Question 3

A patient with a prior mild rash to iodinated contrast reports itching and throat "fullness" during a CT scan. Vital signs are stable. What should the nurse do first?

  • A) A) Notify the radiology provider and prepare epinephrine✓
  • B) B) Give oral diphenhydramine and continue monitoring
  • C) C) Discontinue the contrast infusion and start normal saline
  • D) D) Apply a cool compress and reassure the patient
Show rationale

Throat symptoms suggest evolving anaphylaxis; guidelines mandate immediate provider notification and epinephrine readiness due to risk of rapid deterioration, even if vitals are initially stable. Option B may delay life-saving treatment; oral antihistamines are too slow for systemic reactions. Option C stops exposure but doesn't address potential airway compromise. Option D is inadequate for progressive allergic symptoms.

Question 4

A patient receiving vancomycin via a peripheral IV in the left cephalic vein reports sharp pain 30 minutes after initiation. Assessment reveals erythema extending 8 cm proximally, warmth, and a palpable cord. The infusion rate is correct. Which complication requires immediate intervention?

  • A) A) Infiltration due to catheter dislodgement
  • B) B) Phlebitis from chemical irritation✓
  • C) C) Extravasation of vesicant medication
  • D) D) Infection indicated by local inflammation
Show rationale

Vancomycin is a known irritant causing chemical phlebitis, evidenced by pain, erythema, warmth, and cord formation along the vein. Infiltration (A) lacks erythema/cord and typically presents with edema/coolness. Extravasation (C) involves vesicants (unlike vancomycin) with blistering/tissue necrosis. Infection (D) requires purulent discharge or systemic signs. CDC guidelines mandate line removal for grade ≥2 phlebitis to prevent progression.

Question 5

While assisting with hospice discharge, a nurse notes unused liquid morphine in a patient's home. The family mentions frequent visits by grandchildren and asks about safe disposal. No drug take-back sites exist locally. Which method balances safety and regulatory compliance?

  • A) A) Pour liquid into absorbent material before trash disposal✓
  • B) B) Dilute with water before flushing down the sink
  • C) C) Store in original container with child-resistant cap
  • D) D) Return to hospice for witnessed disposal
Show rationale

Absorbent material neutralizes liquid drugs per FDA household disposal guidelines, reducing ingestion risk for children. Flushing (B) contaminates water and violates DEA rules for controlled substances. Storage (C) maintains diversion risk. Returning to hospice (D) is ideal but impractical without staff availability. Discriminating cues: presence of children and controlled substance require immediate, secure disposal. Option A addresses both while meeting DEA exceptions for home disposal.

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CMSRN · Exam Simulator

During CVAD dressing change, a nurse observes purulent drainage and 2cm erythema. The patient reports tenderne…

A) A) Culture the drainage and document cha
B) B) Measure the erythema and reassess in
C) C) Palpate the tunneled catheter track f
D) D) Assess for systemic signs like chills
Submit Answer

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