ATI RN
ATI Med Surg exam 2 III Questions
Extract:
Question 1 of 5
A client who has a history of myocardial infarction (MI) is prescribed aspirin 325 mg. The nurse recognizes that the aspirin is given due to which of the following actions of the medication?
Correct Answer: B
Rationale: Aspirin acts as an antiplatelet agent by irreversibly inhibiting cyclooxygenase-1 (COX-1) enzyme, reducing thromboxane A2 production, thereby preventing platelet aggregation and thrombus formation.
Extract:
Nurses Notes
Vital Signs
Provider's Prescriptions
0700: Client arrived in the ED complaining of chest discomfort and shortness of breath. Alert and oriented x3. Reports a history of hypertension and diabetes mellitus. Skin is warm and dry. Respirations are 18/min, easy and regular. Oxygen saturation is 91% on room air. Morphine Sulfate 2 mg administered IVP at 0715 for pain management. Client resting in bed, denies pain at this time.
Question 2 of 5
A nurse is caring for a 58-year-old male client in the emergency department (ED) who presents with an irregular pulse and elevated blood pressure. The nurse is planning care for the client. For each potential prescription, indicate whether it is indicated, nonessential, or contraindicated.
| Options | Indicated | Nonessential | Contraindicated |
|---|---|---|---|
| Administer O2 to maintain oxygen saturation greater than 90%. | |||
| Apply continuous ECG monitoring. | |||
| Obtain the client's family history. | |||
| Prepare the client for intubation. |
Correct Answer: A,B
Rationale: Administering O2 to maintain oxygen saturation greater than 90% is indicated to improve tissue oxygenation. Continuous ECG monitoring is crucial for detecting arrhythmias and ischemic changes.
Extract:
Question 3 of 5
A nurse is monitoring a client who is on telemetry. Which of the following findings on the ECG strip should the nurse recognize as normal sinus rhythm?
Correct Answer: D
Rationale: The P wave falling before the QRS complex is a key characteristic of normal sinus rhythm, representing the orderly conduction of electrical impulses from atria to ventricles.
Question 4 of 5
A nurse is interpreting a client's ECG strip. Which of the following components of the ECG should the nurse examine to determine the time it takes for ventricular depolarization and repolarization?
Correct Answer: B
Rationale: The QT interval measures the total time taken for both ventricular depolarization and repolarization.
Question 5 of 5
A nurse is reviewing the serum laboratory findings for a client who has hypertension and is prescribed hydrochlorothiazide. Which of the following findings should the nurse report to the provider?
Correct Answer: B
Rationale: Potassium 2.3 mEq/L is significantly below the normal range (3.5-5.0 mEq/L), indicating hypokalemia, which can lead to arrhythmias and requires prompt reporting.