ATI RN
ATI Pharmacology Proctored Exam 2024
1. A client has Diabetes Mellitus, Pulmonary Tuberculosis, and a new prescription for Isoniazid. Which of the following supplements should the nurse expect to administer to prevent an adverse effect of INH?
- A. Ascorbic acid
- B. Pyridoxine
- C. Folic acid
- D. Cyanocobalamin
Correct answer: B
Rationale: Pyridoxine is administered with Isoniazid to prevent peripheral neuropathy, a common adverse effect of the drug. It is essential to provide this supplement to the client to minimize the risk of developing this adverse effect. Ascorbic acid (Vitamin C) is not typically given to prevent INH adverse effects. Folic acid and Cyanocobalamin are not commonly administered with INH for this purpose.
2. A client has been taking Phenylephrine nasal drops for the past 10 days for Sinusitis. The nurse should assess the client for which of the following adverse effects of this medication?
- A. Sedation
- B. Nasal congestion
- C. Productive cough
- D. Constipation
Correct answer: B
Rationale: The correct answer is B: Nasal congestion. After more than 5 days of use, nasal sympathomimetic medications like phenylephrine can lead to rebound nasal congestion. This occurs due to prolonged vasoconstriction of nasal blood vessels, causing worsening nasal congestion. Sedation (choice A) is not a common adverse effect of phenylephrine nasal drops. Productive cough (choice C) and constipation (choice D) are also not typical adverse effects associated with this medication.
3. A healthcare professional reviewing a client's health record notes a new prescription for Lisinopril 10 mg PO once daily. The healthcare professional should identify this as which of the following types of prescription?
- A. Single
- B. Stat
- C. Routine
- D. Standing
Correct answer: C
Rationale: A routine prescription indicates that the medication is to be administered on a regular schedule, typically daily, without a specified termination date or a specific number of doses. In this case, Lisinopril 10 mg PO once daily is to be given regularly until the healthcare provider decides to discontinue it. This type of prescription is common for medications that are part of the client's ongoing treatment regimen. The other choices are incorrect: 'Single' does not provide information about the frequency or duration of administration, 'Stat' indicates an urgent, one-time administration, and 'Standing' refers to a prescription that is automatically renewed without the need for a new order for each administration.
4. A client with a UTI and a history of recurrent infections asks why the provider has not yet prescribed an antibiotic. The nurse should explain that the provider has to wait for the results of which of the following laboratory tests to identify which antibiotic to prescribe?
- A. Gram stain
- B. Culture
- C. Sensitivity
- D. Specific gravity
Correct answer: C
Rationale: In the case of a UTI, a sensitivity test is crucial as it identifies the most effective antibiotic to target the specific microorganism causing the infection. This test helps in prescribing the appropriate antibiotic for successful treatment and preventing antibiotic resistance. While a Gram stain and culture are important in diagnosing a UTI, the sensitivity test specifically determines the most suitable antibiotic. Specific gravity, on the other hand, is not related to identifying the appropriate antibiotic for a UTI.
5. A healthcare professional in a provider's clinic is caring for a client who reports erectile dysfunction and requests a prescription for sildenafil. Which of the following medications currently prescribed for the client is a contraindication to taking sildenafil?
- A. Isosorbide
- B. Phenytoin
- C. Metronidazole
- D. Prednisone
Correct answer: A
Rationale: Sildenafil is contraindicated with nitrates like isosorbide due to the risk of severe hypotension. Isosorbide is a nitrate that can potentiate the hypotensive effects of sildenafil, leading to a dangerous drop in blood pressure. Therefore, it is essential to avoid concurrent use of isosorbide and sildenafil to prevent adverse effects. Phenytoin, metronidazole, and prednisone do not have significant interactions with sildenafil and are not contraindicated when used together.
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