ATI RN
ATI Pathophysiology Test Bank
1. Which electrolyte imbalance does the nurse suspect in a patient with hyperaldosteronism?
- A. Hyponatremia
- B. Hypernatremia
- C. Hyperkalemia
- D. Hypercalcemia
Correct answer: C
Rationale: In a patient with hyperaldosteronism, the nurse would suspect hyperkalemia. Hyperaldosteronism leads to increased potassium excretion, resulting in low potassium levels in the blood. Therefore, choices A (Hyponatremia), B (Hypernatremia), and D (Hypercalcemia) are incorrect. Hyponatremia refers to low sodium levels, Hypernatremia refers to high sodium levels, and Hypercalcemia refers to high calcium levels, none of which are typically associated with hyperaldosteronism.
2. A patient who is being administered isoniazid (INH) for tuberculosis has a yellow color in the sclera of her eye. What other finding would lead you to believe that hepatotoxicity has developed?
- A. Diarrhea
- B. Numbness
- C. Diminished vision
- D. Light-colored stools
Correct answer: A
Rationale: The correct answer is A: Diarrhea. Hepatotoxicity caused by isoniazid can present with various symptoms, including yellow discoloration of the sclera of the eyes, which indicates jaundice. Another common sign of hepatotoxicity is gastrointestinal symptoms such as nausea, vomiting, and diarrhea, which can occur due to liver dysfunction affecting bile production and digestion. Numbness (choice B) is more commonly associated with peripheral neuropathy caused by isoniazid, while diminished vision (choice C) and light-colored stools (choice D) are not typical manifestations of hepatotoxicity.
3. A patient is starting on a new oral contraceptive. What should the nurse emphasize about the timing of the medication?
- A. Take the medication at the same time each day to maintain stable hormone levels.
- B. Oral contraceptives should be taken in the morning to avoid nighttime side effects.
- C. Oral contraceptives can be taken at any time of day as long as the schedule is consistent.
- D. Oral contraceptives are effective immediately upon starting, regardless of timing.
Correct answer: A
Rationale: The correct answer is A. It is crucial for patients taking oral contraceptives to take the medication at the same time each day to maintain stable hormone levels and ensure their effectiveness in preventing pregnancy. Choice B is incorrect because there is no specific requirement to take oral contraceptives in the morning. Choice C is incorrect because consistency in timing is essential, but it should be at the same time each day. Choice D is incorrect because oral contraceptives may take some time to reach peak effectiveness, so it is important to emphasize the need for consistent timing.
4. When a Tae Kwon Do (TKD) master applies downward pressure just above the elbow joint on an attacker who immediately collapses to the ground, which reflex is applicable to this example?
- A. Golgi tendon reflex
- B. Myotatic reflex
- C. Withdrawal reflex
- D. Crossed-extensor reflex
Correct answer: A
Rationale: The Golgi tendon reflex is the correct answer. This reflex protects the muscle and tendons from excessive force by causing the muscle to relax. In this scenario, the downward pressure applied just above the elbow joint triggers the Golgi tendon reflex, resulting in the attacker's collapse. The other options are incorrect: - The myotatic reflex (also known as the stretch reflex) is responsible for contracting a muscle in response to its stretch, not relaxing it. - The withdrawal reflex is a spinal reflex that moves a body part away from a painful stimulus, not directly related to the scenario described. - The crossed-extensor reflex is a reflex that occurs on the opposite side of the body in response to a withdrawal reflex, which is not the case in this situation.
5. What aspect of this woman's current health status would contraindicate the use of oral contraceptives?
- A. The woman has a diagnosis of type 2 diabetes.
- B. The woman has asthma and uses inhaled corticosteroids and bronchodilators.
- C. The woman has a family history of breast cancer.
- D. The woman takes an antiplatelet medication for coronary artery disease.
Correct answer: A
Rationale: The correct answer is A. Women with type 2 diabetes are at higher risk of developing cardiovascular complications. Oral contraceptives further increase this risk due to their potential effects on blood pressure, lipid metabolism, and clotting factors. Choice B is incorrect as inhaled corticosteroids and bronchodilators do not contraindicate the use of oral contraceptives. Choice C is incorrect as a family history of breast cancer does not directly contraindicate the use of oral contraceptives. Choice D is also incorrect as taking an antiplatelet medication for coronary artery disease does not necessarily contraindicate the use of oral contraceptives.
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