When monitoring patients on antitubercular drug therapy, the nurse knows that which drug may cause a decrease in visual acuity?

Rifampin

Ethambutol

Streptomycin

Isoniazid

Answer and Explanation

The Correct Answer is A

Choice A rationale:

Rifampin Rifampin is an antitubercular drug that is effective against all strains of Mycobacterium tuberculosis. It works by inhibiting the synthesis of RNA in the bacteria, preventing them from reproducing. However, it does not typically cause a decrease in visual acuity.

Choice B rationale:

Ethambutol Ethambutol is an antitubercular drug that can cause ocular toxicity in the form of visual field changes. It is known to induce toxic optic neuropathy, which is quite common and can lead to a decrease in visual acuity. Patients on Ethambutol therapy are advised to report any changes in visual acuity or eye discomfort immediately to their healthcare provider.

Choice C rationale:

Streptomycin Streptomycin is an aminoglycoside antibiotic used in the treatment of tuberculosis. It works by inhibiting protein synthesis in bacteria. While it can cause side effects such as ototoxicity and nephrotoxicity, it is not typically associated with a decrease in visual acuity.

Choice D rationale:

Isoniazid Isoniazid is a first-line antitubercular drug that works by inhibiting the synthesis of mycolic acids in the cell wall of Mycobacterium tuberculosis. While it can cause peripheral neuropathy, it is not typically associated with a decrease in visual acuity.

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Correct Answer is C

Explanation

Choice A rationale:

This choice is incorrect. While it’s true that antiviral drugs can be effective in treating the flu, they’re most effective when started within 48 hours of symptom onset. Starting treatment after 4 days may not provide the same benefits.

Choice B rationale:

This choice is incorrect. While a blood test can confirm the presence of the flu virus, it’s not typically necessary to diagnose the flu. Diagnosis is usually based on symptoms and the fact that the flu is widespread in the community.

Choice C rationale:

This choice is correct. Antiviral drugs are most effective when started within 2 days of symptom onset. After this time, the benefits of these drugs decrease. Therefore, starting treatment 4 days after symptoms begin may not significantly reduce the duration or severity of symptoms.

Choice D rationale:

This choice is incorrect. While it’s true that getting a flu vaccine is important, it’s not the best response in this situation. The flu vaccine won’t treat current illness. It’s designed to prevent future infections. In this case, the individual is already sick, so a booster vaccination wouldn’t be the most effective course of action.

A. Liothyronine (Cytomel) B. Liotrix (Thyrolar) C. Levothyroxine (Synthroid) D. Propylthiouracil (Propacil)

Correct Answer is D

Explanation

Choice A rationale:

Liothyronine (Cytomel) is a type of thyroid hormone used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. However, it is not typically used to treat hyperthyroidism.

Choice B rationale:

Liotrix (Thyrolar) is a combination of two thyroid hormones, levothyroxine (T4) and liothyronine (T3), used to treat hypothyroidism, and to prevent and treat goiter. Similar to Liothyronine, it is not typically used to treat hyperthyroidism. Choice C rationale:

Levothyroxine (Synthroid) is used to treat an underactive thyroid (hypothyroidism). It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Having enough thyroid hormone helps maintain normal mental and physical activity. In children, having enough thyroid hormone helps them grow and learn normally.

Choice D rationale:

Propylthiouracil (Propacil) is an antithyroid agent used in the treatment of hyperthyroidism. It works by decreasing the amount of thyroid hormone produced by the thyroid gland. This helps to prevent the excessive heat, rapid heart rate, and nervousness caused by too much thyroid hormone in the body.

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When monitoring patients on antitubercular drug therapy, the nurse knows that which drug may cause a decrease in visual acuity?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A young adult calls the clinic to ask for a prescription for a new flu drug. He says he has had the flu for almost 4 days and just heard about a drug that can reduce the symptoms. What is the nurse’s best response to his request?

Correct Answer is C

Explanation

Which of the following medications is typically prescribed for the treatment of hyperthyroidism?

Correct Answer is D

Explanation

A nurse is discussing the care of a client who has type 1 diabetes mellitus with an assistive personnel (AP). Which of the following situations should the nurse instruct the AP to report immediately?

A patient is experiencing nausea and decreased appetite during drug therapy with a tetracycline antibiotic. What is the nurse’s best advice to the patient?

A nurse is caring for a client who is to receive liquid medications via a gastrostomy tube. The client is prescribed phenytoin 250 mg. The amount available is phenytoin oral solution 25 mg/5 mL. How many mL should the nurse administer per dose?

A nurse is instructing a client newly diagnosed with pulmonary tuberculosis (TB) about the use of antitubercular medications. What information should the nurse include in the teaching?

A nurse is caring for a client who has tuberculosis and new prescriptions for rifampin and pyrazinamide. Which of the following laboratory tests should the nurse instruct the client will be required while on this medication regimen?

A patient has been prescribed a 2-week course of antifungal suppositories for a vaginal yeast infection. She asks the nurse if there is an alternative to this medication, stating, “I don’t want to do this for 2 weeks!” What could be a possible alternative in this situation?

A nurse is caring for a client who has diabetes insipidus. Which of the following findings should the nurse expect?

When given a scheduled morning medication, the patient states, “I haven’t seen that pill before. Are you sure it’s correct?” The nurse checks the medication administration record and verifies that it is listed. Which is the nurse’s best response?