High-Alert Medications (NCLEX) Safety Quiz

1. Methotrexate is a high-alert medication because:

Small overdoses cause severe toxicity to bone marrow and organs

It has no side effects

Patients never develop tolerance

It is always given orally

2. Which statement about anticoagulant reversal is correct?

Warfarin is reversed with vitamin K; heparin with protamine sulfate

Aspirin reverses all anticoagulants

No reversal agents exist

Reversal is never needed

3. A patient on metformin develops symptoms of lactic acidosis. What labs should be drawn?

Serum lactate, pH, and renal function (creatinine)

Hemoglobin only

Glucose only

Liver enzymes only

4. When administering phenytoin IV, which complication must you prevent?

Tissue necrosis from extravasation; use central line or dilute in normal saline

Hyperglycemia

Increased seizure activity

Allergic reaction to food

5. Why are immunosuppressants classified as high-alert medications?

Underdosing risks graft rejection; overdosing causes severe infection and malignancy

They have no side effects

Dosing errors are impossible

They improve immune function

6. A patient receives nitroglycerin and becomes hypotensive. What is the priority intervention?

Place patient flat or Trendelenburg; discontinue nitroglycerin; notify provider

Give more nitroglycerin

Administer epinephrine

Increase IV fluids rapidly

7. What is the most important safety protocol for opioid medications?

Verify patient identity, dose, and route; monitor respiratory rate closely

Give without checking patient history

Combine with alcohol for better effect

Do not monitor vital signs

8. When administering vancomycin, which adverse effect requires immediate monitoring?

Red Man Syndrome (flushing, pruritus); slow infusion rate and premedicate

Hypertension

Hyperglycemia

Tachycardia

9. A patient on insulin glargine reports feeling shaky and sweaty. What is your first action?

Check blood glucose immediately; suspect hypoglycemia

Give more insulin

Administer oxygen

Call for an EKG

10. Which monitoring parameter is most critical when a patient receives lisinopril?

Blood pressure and serum potassium levels

Weight gain only

Appetite changes

Sleep patterns

11. Which medication class requires the most frequent monitoring for therapeutic drug levels?

Anticoagulants (warfarin, heparin)

Antacids

Antihistamines

Decongestants

12. What is the critical safety measure when administering IV potassium chloride?

Always use a central line; never exceed 20 mEq/hour peripherally

Push it rapidly into any IV

Mix with sodium chloride only

Give undiluted for faster effect

13. A nurse notes the patient's INR is 8.5 on warfarin therapy. What is the priority action?

Notify the provider immediately; patient is at high bleeding risk

Continue the current dose

Double the next dose

Administer aspirin to counteract

Wait 24 hours before reporting

14. Which statement about digoxin is correct?

Digoxin has a narrow therapeutic index; monitor serum levels and heart rate

Digoxin toxicity is rare

Digoxin does not interact with electrolytes

Digoxin is safe at any dose

15. When administering heparin, what is the most important safety check?

Verify the dose and route; use an infusion pump for IV administration

Give all heparin as IV bolus

Do not monitor aPTT levels

Mix heparin with other IV medications in the same line

16. Chemotherapy medications are high-alert drugs primarily because they:

Have a narrow therapeutic window and severe toxicity at high doses

Are always given orally

Never cause side effects

Improve patient appetite

17. A patient is on warfarin. What is the most critical lab value to monitor?

INR (International Normalized Ratio)

Hemoglobin

Creatinine

Albumin

18. Which action best prevents medication errors with potassium chloride?

Always dilute and infuse slowly; never give IV push

Give it undiluted for faster action

Mix it with sodium bicarbonate

Administer only in the morning

19. What is the primary reason insulin is classified as a high-alert medication?

Small dosing errors can cause severe hypoglycemia or hyperglycemia

It requires refrigeration

It is only given intravenously

It interacts with all other medications

High-Alert Med Quiz: Can You Avoid a Fatal Error?