ATI RN
ATI Proctored Pharmacology Test
1. Which of the following drugs has a therapeutic effect that increases cardiac output and slows heart rate?
- A. Heparin
- B. Alprazolam
- C. Digoxin
- D. Levothyroxine
Correct answer: C
Rationale: Digoxin is the correct answer. It is a medication known for its positive inotropic effects, which increase cardiac output, and negative chronotropic effects, which slow the heart rate. These effects are achieved by inhibiting the sodium-potassium ATPase pump in myocardial cells. Therefore, Digoxin is commonly prescribed to manage conditions like heart failure and atrial fibrillation, where enhancing cardiac output and reducing heart rate are beneficial. Choices A, B, and D are incorrect because Heparin is an anticoagulant, Alprazolam is a benzodiazepine used for anxiety disorders, and Levothyroxine is a thyroid hormone replacement drug, none of which have the specified therapeutic effects on cardiac function.
2. A healthcare professional is caring for a client who has a new prescription for Morphine to manage post-operative pain. Which of the following assessments should the healthcare professional perform first?
- A. Urine output
- B. Bowel sounds
- C. Pain level
- D. Respiratory rate
Correct answer: D
Rationale: The healthcare professional should prioritize assessing the client's respiratory rate because respiratory depression is a life-threatening adverse effect of Morphine. Monitoring the respiratory rate allows for early detection of potential complications and timely intervention to prevent harm. Assessing urine output, bowel sounds, and pain level are important but should come after ensuring the client's respiratory status is stable as it is the most critical assessment to prevent serious complications associated with opioid use.
3. A client with a history of preterm labor is reviewing a new prescription for Terbutaline. Which of the following client statements indicates understanding of the teaching?
- A. I will increase my daily fluid intake to 3 quarts.
- B. I can increase my activity now that I've started on this medication.
- C. I will report increasing intensity of contractions to my doctor.
- D. I am glad this will prevent preterm labor.
Correct answer: C
Rationale: The correct answer is C. The client should report increasing intensity, frequency, or duration of contractions to the provider because these are manifestations of preterm labor. This response demonstrates the client's understanding of the importance of monitoring contractions and seeking appropriate medical attention. Choices A, B, and D are incorrect because increasing fluid intake, increasing activity, or assuming the medication will prevent preterm labor are not relevant actions in managing preterm labor or taking Terbutaline.
4. Which statement is true about food and drug precautions?
- A. Limiting certain types of food or administering certain types of drugs is necessary.
- B. Certain combinations of food and drugs can cause adverse reactions.
- C. Precautions may involve limiting certain types of food or administering drugs rather than restricting the drug itself.
- D. When one drug alters the way another drug affects the body.
Correct answer: B
Rationale: The correct answer is B. Certain combinations of food and drugs can indeed lead to adverse reactions. It is important to be cautious with the simultaneous intake of food and drugs as interactions between them can affect their efficacy and safety. Choices A, C, and D are incorrect because they do not accurately reflect the potential risks associated with the combination of food and drugs.
5. A healthcare professional is reviewing laboratory results for a client who is receiving heparin via continuous IV infusion. Which of the following results indicates that the heparin infusion should be increased?
- A. aPTT of 90 seconds
- B. Platelet count of 150,000/mm³
- C. INR of 1.0
- D. Hgb of 15 g/dL
Correct answer: A
Rationale: An aPTT of 90 seconds is above the therapeutic range for heparin, which typically falls between 60-80 seconds. This indicates that the current heparin dose is too high, and the infusion rate should be decreased to avoid excessive anticoagulation and the risk of bleeding. Monitoring aPTT is crucial in adjusting heparin therapy to maintain it within the therapeutic range.
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