a patient being treated for tuberculosis is determined to be drug resistant which of the following medications will the patient be resistant to in the

ATI RN

ATI Pathophysiology Exam

1. A patient being treated for tuberculosis is determined to be drug resistant. Which of the following medications will the patient be resistant to in the treatment of tuberculosis?

A. Isoniazid (INH) and rifampin
B. Carbamazepine (Tegretol) and phenytoin (Dilantin)
C. Dextroamphetamine (Dexedrine) and doxapram (Dopram)
D. Propranolol (Inderal) and sotalol (Betapace)

Correct answer: A

Rationale: In the treatment of tuberculosis, drug resistance commonly develops against medications like Isoniazid (INH) and rifampin. These two drugs are key components of the standard anti-tuberculosis treatment regimen. Choices B, C, and D are unrelated medications that are not used in the treatment of tuberculosis. Carbamazepine and phenytoin are anticonvulsants, dextroamphetamine is a stimulant, and propranolol and sotalol are used for cardiovascular conditions.

2. In a patient with chronic kidney disease and a hemoglobin level of 9 g/dL, which of the following treatments is most appropriate?

A. Iron supplementation
B. Erythropoiesis-stimulating agents
C. Blood transfusion
D. Vitamin B12 supplementation

Correct answer: B

Rationale: In chronic kidney disease, anemia commonly occurs due to decreased erythropoietin production. Erythropoiesis-stimulating agents, such as erythropoietin or darbepoetin, are the mainstay of treatment to stimulate red blood cell production. Iron supplementation is more appropriate for iron-deficiency anemia, not the anemia of chronic kidney disease. Blood transfusion is reserved for severe cases or acute blood loss. Vitamin B12 supplementation is indicated for megaloblastic anemia caused by vitamin B12 deficiency, not specifically in chronic kidney disease-related anemia.

3. A patient with a history of venous thromboembolism is prescribed hormone replacement therapy (HRT). What should the nurse emphasize about the risks associated with this therapy?

A. HRT is associated with an increased risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots.
B. HRT may improve mood and energy levels, but it also increases the risk of osteoporosis.
C. HRT can decrease the risk of fractures, but it also increases the risk of developing diabetes.
D. HRT may increase the risk of breast cancer, so regular mammograms are essential.

Correct answer: A

Rationale: HRT is associated with an increased risk of venous thromboembolism, so patients should be educated about the signs and symptoms of blood clots and advised to seek immediate medical attention if they occur.

4. Which of the following is a characteristic of osteosarcoma?

A. Slow-growing tumor that begins in the bone marrow
B. Solitary tumor that most often affects the metaphyseal region of the femur or tibia
C. An aggressive tumor most often found in the bone marrow of long bones
D. A tumor that infiltrates the trabeculae in spongy bone and implants in surrounding tissue

Correct answer: C

Rationale: Osteosarcoma is an aggressive bone tumor that most commonly arises in the bone marrow of long bones, such as the femur or tibia. Choice A is incorrect as osteosarcoma is not a slow-growing tumor but rather a fast-growing one. Choice B is incorrect as osteosarcoma is not typically solitary but can involve multiple lesions. Choice D is incorrect as osteosarcoma primarily affects the medullary (marrow) cavity of bones, rather than infiltrating the trabeculae in spongy bone and surrounding tissue.

5. Which of the following is a common cause of secondary hypertension?

A. Primary aldosteronism
B. Essential hypertension
C. White coat hypertension
D. Prehypertension

Correct answer: A

Rationale: Primary aldosteronism is a common cause of secondary hypertension. In primary aldosteronism, there is an overproduction of aldosterone from the adrenal glands, leading to increased sodium retention and potassium excretion, ultimately resulting in high blood pressure. Essential hypertension (Choice B) is the most common type of hypertension, but it is considered primary hypertension, not secondary. White coat hypertension (Choice C) refers to elevated blood pressure readings in a clinical setting due to anxiety but not in daily life. Prehypertension (Choice D) is a condition where blood pressure levels are elevated but not high enough to be classified as hypertension.