Virtual ATI RN Pharmacology
Proctored Exam with NGN 70
Questions and Answers # RN ATI
Pharmacology 2023/2026 Proctored
Exam with NGN 70 Questions and
Rationales.
1. A nurse is preparing to administer digoxin to a client with heart failure.
Which finding requires the nurse to withhold the medication and notify
the provider?
A) Potassium level of 4.2 mEq/L
B) Apical pulse of 54 beats/min
C) Blood pressure of 138/84 mm Hg
D) Respiratory rate of 18/min
, Correct Answer: B
Rationale: A pulse below 60/min is a sign of digoxin toxicity and requires
holding the dose. Administering the medication could worsen
bradycardia and lead to serious cardiac complications. The provider must
be notified for further instructions .
2. A client receiving heparin infusion has an aPTT result of 120 seconds.
Which action should the nurse take?
A) Continue the infusion as ordered
B) Administer protamine sulfate
C) Increase the infusion rate
D) Administer vitamin K
Correct Answer: B
Rationale: An aPTT of 120 seconds is dangerously elevated, indicating
high bleeding risk. Protamine sulfate is the specific antidote that
neutralizes heparin. Vitamin K is the antidote for warfarin, not heparin .
3. A nurse is evaluating laboratory results for a client receiving heparin
infusion. Which result indicates a therapeutic level?
,
A) aPTT of 45 seconds
B) aPTT of 90 seconds
C) INR of 1.5
D) INR of 2.5
Correct Answer: B
Rationale: The therapeutic aPTT for a client on heparin infusion is 1.5 to 2
times the normal control value (typically 60-90 seconds). aPTT of 45
seconds is subtherapeutic, and INR is used to monitor warfarin therapy .
4. A nurse is preparing to administer warfarin to a client. Which
laboratory test should the nurse review prior to administration?
A) PT (Prothrombin Time)
B) Total iron-binding capacity
, C) WBC count
D) PTT (Partial Thromboplastin Time)
Correct Answer: A
Rationale: PT and INR are used to monitor warfarin therapy. PTT is used
for heparin monitoring. PT measures the extrinsic pathway affected by
warfarin .
5. A client taking warfarin is prescribed ciprofloxacin for a urinary tract
infection. The nurse should monitor the client for which potential
complication?
A) Decreased warfarin effect
B) Increased bleeding risk
C) Hypotension
D) Hyperglycemia
Correct Answer: B
Proctored Exam with NGN 70
Questions and Answers # RN ATI
Pharmacology 2023/2026 Proctored
Exam with NGN 70 Questions and
Rationales.
1. A nurse is preparing to administer digoxin to a client with heart failure.
Which finding requires the nurse to withhold the medication and notify
the provider?
A) Potassium level of 4.2 mEq/L
B) Apical pulse of 54 beats/min
C) Blood pressure of 138/84 mm Hg
D) Respiratory rate of 18/min
, Correct Answer: B
Rationale: A pulse below 60/min is a sign of digoxin toxicity and requires
holding the dose. Administering the medication could worsen
bradycardia and lead to serious cardiac complications. The provider must
be notified for further instructions .
2. A client receiving heparin infusion has an aPTT result of 120 seconds.
Which action should the nurse take?
A) Continue the infusion as ordered
B) Administer protamine sulfate
C) Increase the infusion rate
D) Administer vitamin K
Correct Answer: B
Rationale: An aPTT of 120 seconds is dangerously elevated, indicating
high bleeding risk. Protamine sulfate is the specific antidote that
neutralizes heparin. Vitamin K is the antidote for warfarin, not heparin .
3. A nurse is evaluating laboratory results for a client receiving heparin
infusion. Which result indicates a therapeutic level?
,
A) aPTT of 45 seconds
B) aPTT of 90 seconds
C) INR of 1.5
D) INR of 2.5
Correct Answer: B
Rationale: The therapeutic aPTT for a client on heparin infusion is 1.5 to 2
times the normal control value (typically 60-90 seconds). aPTT of 45
seconds is subtherapeutic, and INR is used to monitor warfarin therapy .
4. A nurse is preparing to administer warfarin to a client. Which
laboratory test should the nurse review prior to administration?
A) PT (Prothrombin Time)
B) Total iron-binding capacity
, C) WBC count
D) PTT (Partial Thromboplastin Time)
Correct Answer: A
Rationale: PT and INR are used to monitor warfarin therapy. PTT is used
for heparin monitoring. PT measures the extrinsic pathway affected by
warfarin .
5. A client taking warfarin is prescribed ciprofloxacin for a urinary tract
infection. The nurse should monitor the client for which potential
complication?
A) Decreased warfarin effect
B) Increased bleeding risk
C) Hypotension
D) Hyperglycemia
Correct Answer: B
