ATI LPN
ATI LPN Mental Health Exam IV Questions
Extract:
Question 1 of 5
A nurse is reinforcing discharge teaching for a client who will be taking warfarin (Coumadin) at home. Which of the following statements indicates that the client understands the effects of this medication?
Correct Answer: B
Rationale: Warfarin, an anticoagulant, increases bleeding risk. Avoiding aspirin (also a blood thinner) prevents excessive anticoagulation, showing understanding. High vitamin K intake counteracts warfarin by aiding clotting factor synthesis. Alcohol increases bleeding risk, and while electric razors reduce cuts, this isn’t specific to warfarin’s effects but a safety measure.
Question 2 of 5
A nurse on a telemetry unit is reviewing the laboratory results for a client who has atrial fibrillation and is taking warfarin. Which of the following laboratory values should the nurse report to the provider?
Correct Answer: B
Rationale: PT of 45 seconds (normal 11–13.5 seconds) indicates excessive anticoagulation (therapeutic 1.5–2 times normal), risking bleeding on warfarin. Hgb (16 g/dL, 13.8–17.2 g/dL), aPTT (36 seconds, 21–35 seconds), and platelets (190,000/mm, 150,000–450,000/mm) are normal. PT requires urgent reporting.
Question 3 of 5
A nurse is caring for a client who recently had surgery for the insertion of a permanent pacemaker. Which of the following prescriptions should the nurse question?
Correct Answer: C
Rationale: MRI’s magnetic fields can interfere with pacemakers unless MRI-safe, making it questionable post-insertion. Low sodium (
A) manages fluid, enzyme levels (
B) check heart damage, and PT (
D) aids recovery—all appropriate. MRI poses a safety risk.
Question 4 of 5
A nurse is assisting with the care of a client who was admitted to the telemetry unit after experiencing chest pain, dyspnea, and diaphoresis. Which of the following ECG findings is a manifestation of acute myocardial infarction?
Correct Answer: D
Rationale: ST segment elevation is a key diagnostic sign of acute myocardial infarction (STEMI), indicating myocardial injury due to blocked coronary blood flow. A PR interval of 0.15 seconds is normal (0.12–0.20 seconds), as is a QRS interval of 0.08 seconds (0.06–0.10 seconds). A QT interval equal to the R-R interval is abnormal but not specific to myocardial infarction; it suggests prolonged repolarization, possibly from other causes.
Question 5 of 5
A teenager is noted to have a heightened awareness of reality, feelings of depersonalization, unpredictable and sometimes violent behavior, and flashbacks. The nurse suspects that the teenager is taking which of the following chemicals?
Correct Answer: D
Rationale: Cannabis: While cannabis can alter perception and cause depersonalization, it is less likely to cause violent behavior and flashbacks. Heroin: Heroin is a depressant that typically causes sedation and euphoria, not heightened awareness or violent behavior. Cocaine: Cocaine is a stimulant that can cause heightened awareness but is less associated with depersonalization and flashbacks. Phencyclidine (PCP): PCP is known to cause severe alterations in perception, depersonalization, unpredictable and violent behavior, and flashbacks.