ATI RN
ATI Pathophysiology Exam 2
1. 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.
2. In an adult patient suspected of having an androgen deficiency and considering treatment with testosterone, the use of testosterone would be most complicated by the presence of what preexisting health problem?
- A. Urinary incontinence
- B. BPH
- C. Chronic renal failure
- D. Type 2 diabetes
Correct answer: B
Rationale: The correct answer is BPH (Benign Prostatic Hyperplasia). Testosterone therapy can worsen symptoms of BPH by potentially increasing prostate size and stimulating the growth of prostate tissue. This can lead to complications such as urinary retention and the need for further medical interventions. Urinary incontinence (choice A) can have various causes but is not directly related to testosterone therapy. Chronic renal failure (choice C) and Type 2 diabetes (choice D) are not typically contraindications for testosterone therapy in the context of androgen deficiency.
3. A patient with a history of hypertension presents with a severe headache, confusion, and visual disturbances. His blood pressure is 220/120 mm Hg. Which of the following is the most likely diagnosis?
- A. Migraine
- B. Cluster headache
- C. Hypertensive emergency
- D. Tension headache
Correct answer: C
Rationale: A patient with a history of hypertension presenting with a severe headache, confusion, and visual disturbances, along with a blood pressure of 220/120 mm Hg, likely has a hypertensive emergency. In this situation, the severely elevated blood pressure can lead to end-organ damage, causing symptoms such as headache and confusion. Migraine and tension headaches are not associated with such high blood pressure levels. Cluster headaches typically do not present with visual disturbances and confusion in the setting of severe hypertension.
4. Which of the following birthmarks usually fade or regress as the child gets older?
- A. Hemangiomas
- B. Congenital dermal melanocytosis (i.e., Mongolian spots)
- C. Macular stains
- D. Hemangiomas, congenital dermal melanocytosis (i.e., Mongolian spots), and macular stains
Correct answer: D
Rationale: The correct answer is D. Hemangiomas, congenital dermal melanocytosis (i.e., Mongolian spots), and macular stains are birthmarks that usually fade or regress as the child gets older. Hemangiomas are vascular birthmarks that often shrink and fade over time. Congenital dermal melanocytosis (Mongolian spots) are blue-gray birthmarks commonly found on the lower back and buttocks of infants, which typically fade by adolescence. Macular stains, also known as salmon patches, are pink or red birthmarks that usually fade within the first few years of life. Choice D is correct because all the mentioned birthmarks tend to diminish as the child grows, unlike choices A, B, and C which do not fade or regress with age.
5. The college health nurse is providing health education for freshmen. Which of the following pieces of information about immunizations is applicable to individuals of this age group?
- A. The oral polio vaccine should be updated.
- B. The yearly administration of flu vaccine is recommended.
- C. The tetanus toxoid should be within 2 years.
- D. The administration of hepatitis A vaccine is mandatory.
Correct answer: B
Rationale: For freshmen in college, the yearly administration of the flu vaccine is recommended. This is important to protect against seasonal influenza outbreaks that can spread rapidly in close living quarters such as dormitories. Choice A is incorrect as oral polio vaccine is not typically given to individuals of this age group. Choice C is incorrect as tetanus toxoid boosters are usually recommended every 10 years, not within 2 years. Choice D is incorrect as the administration of the hepatitis A vaccine is not mandatory for all individuals in this age group.
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