ATI RN
ATI Pathophysiology Exam 1
1. A male patient is being treated with sildenafil (Viagra) for erectile dysfunction. What condition would contraindicate the use of this medication?
- A. Peptic ulcer disease
- B. History of myocardial infarction
- C. Recent use of antihypertensive medications
- D. Use of nitrates
Correct answer: D
Rationale: The correct answer is D: Use of nitrates. Sildenafil (Viagra) is contraindicated in patients taking nitrates due to the risk of severe hypotension. Nitrates and sildenafil both cause vasodilation, and the combination can lead to a dangerous drop in blood pressure. Choice A, peptic ulcer disease, is not a contraindication for sildenafil use. Choice B, a history of myocardial infarction, is not a contraindication unless the patient is also taking nitrates. Choice C, recent use of antihypertensive medications, is not a contraindication but requires caution as the combination can lead to additive effects lowering blood pressure.
2. A staff member asks what leukocytosis means. How should the nurse respond? Leukocytosis can be defined as:
- A. A normal leukocyte count
- B. A high leukocyte count
- C. A low leukocyte count
- D. Another term for leukopenia
Correct answer: B
Rationale: Leukocytosis refers to an abnormally high leukocyte count. This condition is characterized by an elevated number of white blood cells in the bloodstream. Choice A is incorrect because leukocytosis does not refer to a normal leukocyte count. Choice C is incorrect as leukocytosis is not related to a low leukocyte count. Choice D is incorrect as leukopenia is the opposite of leukocytosis, indicating a low white blood cell count.
3. Macular degeneration occurs as a result of:
- A. loss of lens accommodation
- B. detachment of the retina
- C. increased intraocular pressure
- D. impaired blood supply leading to cellular waste accumulation and ischemia
Correct answer: D
Rationale: Macular degeneration is a condition that affects the macula, a part of the retina responsible for central vision. It is primarily caused by impaired blood supply to the macula, leading to cellular waste accumulation and ischemia. This results in the death of photoreceptor cells and ultimately vision loss. Choices A, B, and C are incorrect because macular degeneration is not related to the loss of lens accommodation, detachment of the retina, or increased intraocular pressure. The correct answer directly addresses the underlying pathophysiology of macular degeneration.
4. 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.
5. A client is admitted with a suspected aortic dissection. What is the priority nursing intervention?
- A. Administer antihypertensive medications as prescribed.
- B. Prepare the client for emergency surgery.
- C. Administer intravenous fluids to maintain blood pressure.
- D. Monitor the client's urine output closely.
Correct answer: B
Rationale: The correct answer is B: Prepare the client for emergency surgery. Aortic dissection is a life-threatening emergency that often necessitates immediate surgical intervention to prevent rupture and further complications. Administering antihypertensive medications (choice A) may be necessary but is not the priority over surgical intervention. While maintaining blood pressure with intravenous fluids (choice C) is important, the urgent need for surgery takes precedence. Monitoring urine output (choice D) is essential for assessing renal function but is not the priority in this critical situation.
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