ATI RN
ATI Pharmacology
1. A client is prescribed Bethanechol to treat urinary retention. Which of the following findings is a manifestation of muscarinic stimulation?
- A. Dry mouth
- B. Hypertension
- C. Excessive perspiration
- D. Fecal impaction
Correct answer: C
Rationale: Bethanechol is a muscarinic agonist, which stimulates muscarinic receptors. Activation of these receptors can lead to increased sweating (excessive perspiration) as a manifestation of muscarinic stimulation. Options A, B, and D are not typically associated with muscarinic stimulation. Dry mouth is a common side effect of anticholinergic medications, hypertension is not a common manifestation of muscarinic stimulation, and fecal impaction is not directly related to muscarinic receptor activation.
2. What is the expected pharmacological action of propranolol?
- A. Block stimulation of beta1 receptors
- B. Alter water and electrolyte transport in the large intestine
- C. Block stimulation of beta2 receptors
- D. Both A and C are correct
Correct answer: D
Rationale: Propranolol exerts its pharmacological action by blocking stimulation of both beta1 and beta2 receptors. By doing so, it leads to decreased heart rate and blood pressure. Therefore, both options A and C are correct as propranolol affects both types of beta receptors. Choice B is incorrect as propranolol does not alter water and electrolyte transport in the large intestine.
3. A healthcare professional in an emergency unit is reviewing the medical record of a client who is being evaluated for angle-closure glaucoma. Which of the following findings is indicative of this condition?
- A. Insidious onset of painless loss of vision
- B. Gradual reduction in peripheral vision
- C. Severe pain around the eyes
- D. Intraocular pressure 12 mm Hg
Correct answer: C
Rationale: Severe pain around the eyes that radiates over the face is a classic symptom of acute angle-closure glaucoma. This intense pain is often associated with other symptoms such as blurred vision, halos around lights, redness in the eye, and sometimes nausea and vomiting. Immediate medical attention is required to prevent permanent vision loss. Choices A, B, and D are incorrect. Insidious onset of painless loss of vision is more indicative of conditions like macular degeneration. Gradual reduction in peripheral vision is commonly seen in conditions like open-angle glaucoma. An intraocular pressure of 12 mm Hg is within the normal range and is not typical of angle-closure glaucoma.
4. A client is prescribed Amitriptyline for depression. What should the nurse include in the teaching? (Select all that apply.)
- A. Expect therapeutic effects in 1-3 weeks.
- B. Discontinue the medication gradually under healthcare provider supervision.
- C. Change positions slowly to minimize dizziness.
- D. Increase dietary fiber intake to prevent constipation.
Correct answer: C
Rationale: The correct answer is C. Changing positions slowly can help prevent orthostatic hypotension, a common adverse effect of tricyclic antidepressants like Amitriptyline. It is essential to educate the client to avoid sudden position changes to minimize the risk of dizziness and falls. Choices A, B, and D are incorrect. The therapeutic effects of Amitriptyline may not be noticeable for 1-3 weeks, so expecting them in 24 to 48 hours (choice A) is unrealistic. Discontinuing the medication abruptly can lead to withdrawal symptoms and should be done gradually under healthcare provider supervision, so choice B is incorrect. Amitriptyline can actually cause constipation, so increasing dietary fiber intake would be recommended to prevent constipation, making choice D incorrect.
5. A client is being discharged with a new prescription for an antihypertensive medication. Which of the following statements should the nurse provide?
- A. Be sure to limit your potassium intake while taking the medication.
- B. You should check your blood pressure every 8 hours while taking this medication.
- C. Your medication dosage will be increased if you develop tachycardia.
- D. Change positions slowly when you move from sitting to standing.
Correct answer: D
Rationale: The correct answer is D. Orthostatic hypotension is a common adverse effect of antihypertensive medications. The client should move slowly to a sitting or standing position and should be taught to sit or lie down if lightheadedness or dizziness occurs. Choices A, B, and C are incorrect. Limiting potassium intake is usually not necessary with antihypertensive medications. Checking blood pressure every 8 hours is not a standard recommendation unless specified by a healthcare provider. Increasing medication dosage due to tachycardia is not a typical practice for antihypertensive medications.
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