ATI RN
WGU Pathophysiology Final Exam
1. When a healthcare professional notices that a patient has type O blood, they realize that anti-_____ antibodies are present in the patient's body.
- A. A only
- B. B only
- C. A and B
- D. O
Correct answer: C
Rationale: Individuals with type O blood have both anti-A and anti-B antibodies in their body. This is because type O blood lacks A or B antigens on the surface of red blood cells, causing the body to produce antibodies against both A and B antigens. Therefore, the correct answer is C. Choice A and B only antibodies are incorrect because type O individuals have both anti-A and anti-B antibodies. Choice D is incorrect as O represents the blood type itself, not the antibodies present in the blood.
2. A 22-year-old was recently diagnosed with acquired immunodeficiency syndrome (AIDS). Which decreased lab finding would be expected to accompany this virus?
- A. CD4 helper T cells
- B. CD8 helper T cells
- C. CDC cells
- D. CDC10 cells
Correct answer: A
Rationale: In a person diagnosed with AIDS, a decrease in CD4 helper T cells is expected. These cells are critical for the immune system's proper functioning, and their reduction weakens the body's ability to fight infections. CD8 helper T cells (Choice B) are not typically decreased in AIDS. CDC cells (Choice C) and CDC10 cells (Choice D) are not relevant terms in this context, making them incorrect choices.
3. A nurse is administering testosterone to a patient with hypogonadism. What outcome indicates that the treatment is having the desired effect?
- A. Increased libido
- B. Increased muscle mass
- C. Improved secondary sexual characteristics
- D. Decreased sperm count
Correct answer: C
Rationale: The correct answer is C: 'Improved secondary sexual characteristics.' Testosterone therapy in patients with hypogonadism typically leads to improved secondary sexual characteristics, which include increased muscle mass and libido. While increased libido (choice A) and increased muscle mass (choice B) are effects of testosterone therapy, they are more specific outcomes related to secondary sexual characteristics. Decreased sperm count (choice D) would not be an expected outcome of testosterone therapy for hypogonadism, as testosterone is essential for sperm production.
4. Following cardiothoracic surgery where controlled therapeutic hypothermia was utilized to decrease metabolic demands, the nurse responsible for monitoring this client postoperatively should be assessing for which potential complication related to cold cardioplegia?
- A. Thrombocytopenia
- B. Hypokalemia
- C. Hyperglycemia
- D. Coagulopathy
Correct answer: D
Rationale: Coagulopathy is the correct answer. During therapeutic hypothermia, which lowers the body's temperature to reduce metabolic demands post-surgery, coagulopathy, or impaired blood clotting, is a potential complication due to the effects of cold cardioplegia. Thrombocytopenia (choice A) refers to a low platelet count and is not directly related to cold cardioplegia. Hypokalemia (choice B) is a condition of low potassium levels, and hyperglycemia (choice C) is high blood sugar levels, neither of which are primary complications of cold cardioplegia.
5. A 67-year-old man is receiving androgen therapy for osteoporosis. What laboratory test should the nurse monitor during this therapy?
- A. Liver function tests
- B. Blood glucose levels
- C. Prostate-specific antigen (PSA)
- D. Cholesterol levels
Correct answer: A
Rationale: During androgen therapy, monitoring liver function tests is crucial to detect any signs of liver dysfunction. Androgens can potentially impact liver function, making it essential to monitor enzymes such as ALT and AST. While blood glucose levels and cholesterol levels are important parameters to monitor in certain situations, they are not the primary focus during androgen therapy for osteoporosis. Prostate-specific antigen (PSA) monitoring is more relevant in the context of prostate health and cancer screening, not specifically during androgen therapy for osteoporosis.
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