ATI RN
ATI Pharmacology Proctored Exam 2019
1. In reviewing a client's health record, which condition would be a contraindication for using Propranolol to treat hypertension?
- A. Asthma
- B. Glaucoma
- C. Hypertension
- D. Tachycardia
Correct answer: A
Rationale: Propranolol is a nonselective beta-adrenergic blocker that blocks both beta1 and beta2 receptors. Blocking beta2 receptors in the lungs can lead to bronchoconstriction, making it unsuitable for clients with asthma. Therefore, asthma is a contraindication for taking Propranolol. Glaucoma, hypertension, and tachycardia are not contraindications for using Propranolol to treat hypertension.
2. A healthcare provider is reviewing the health care record of a client who reports urinary incontinence and asks about a prescription for Oxybutynin. The provider should recognize that Oxybutynin is contraindicated in the presence of which of the following conditions?
- A. Bursitis
- B. Sinusitis
- C. Depression
- D. Glaucoma
Correct answer: D
Rationale: Oxybutynin is an anticholinergic medication that can increase intraocular pressure. It is contraindicated in clients with glaucoma, as it can worsen the condition. Glaucoma is a condition characterized by increased intraocular pressure, and using Oxybutynin can further elevate this pressure, potentially leading to serious complications such as vision impairment or damage to the optic nerve. Choices A, B, and C are incorrect as bursitis, sinusitis, and depression are not contraindications for Oxybutynin use. Therefore, the correct answer is D, Glaucoma.
3. How do ACE inhibitors work?
- A. Block the vasoconstrictor and aldosterone effects of angiotensin II at the receptor site
- B. Block stimulation of beta 1 and beta 2 at the receptor sites
- C. Block the conversion of angiotensin I to the vasoconstrictor angiotensin II
- D. None of the above
Correct answer: C
Rationale: ACE inhibitors work by inhibiting the conversion of angiotensin I to angiotensin II. Angiotensin II is a potent vasoconstrictor, and by blocking its production, ACE inhibitors help dilate blood vessels, reduce blood pressure, and decrease the workload of the heart. Choice A is incorrect because it describes the mechanism of action of angiotensin receptor blockers (ARBs), not ACE inhibitors. Choice B is incorrect as it describes beta-blockers, not ACE inhibitors. Choice D is incorrect as ACE inhibitors do have a specific mechanism of action.
4. When teaching a client about preventing Otitis Externa, which of the following instructions should the nurse include?
- A. Clean the ear with a cotton-tipped swab daily.
- B. Place earplugs in the ears when sleeping at night.
- C. Use a cool water irrigation solution to remove earwax.
- D. Tip the head to the side to remove water from the ears after showering.
Correct answer: D
Rationale: To prevent Otitis Externa, the nurse should instruct the client to tip the head to the side to allow water to drain out after showering or swimming. This helps to prevent moisture buildup in the ear canal, reducing the risk of developing Otitis Externa, commonly known as swimmer's ear.
5. In an acute mental health facility, a patient experiencing opioid withdrawal has a new prescription for Clonidine. What action should the nurse identify as the priority?
- A. Administer the Clonidine as prescribed.
- B. Provide ice chips to the patient.
- C. Educate the patient on Clonidine's effects.
- D. Obtain baseline vital signs.
Correct answer: D
Rationale: In this scenario, the priority action for the nurse is to obtain baseline vital signs. This is essential for establishing a baseline assessment, especially for a patient undergoing opioid withdrawal and starting a new medication like Clonidine. Monitoring vital signs is crucial for evaluating the patient's response to treatment and detecting any potential complications early on. Administering the medication, providing ice chips, and educating the patient on Clonidine's effects are important tasks but obtaining baseline vital signs takes precedence to ensure the patient's safety and proper management.
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