ATI RN
Final Exam Pathophysiology
1. A patient has developed a decubitus ulcer on the coccyx. What defense mechanism is most affected by this homeostatic change?
- A. The mucous membrane is affected.
- B. The respiratory tract is affected.
- C. The skin is affected.
- D. The gastrointestinal tract is affected.
Correct answer: C
Rationale: In this scenario, a decubitus ulcer on the coccyx indicates a breakdown of the skin's integrity due to prolonged pressure. The skin is the primary defense mechanism of the body against external pathogens. When the skin is compromised, it can lead to infections and other complications. The mucous membrane (Choice A) plays a role in protecting internal surfaces, not the skin. The respiratory tract (Choice B) is involved in breathing and not directly related to the skin's defense. The gastrointestinal tract (Choice D) is responsible for digestion and absorption of nutrients, not the primary defense mechanism against external threats like the skin.
2. A 74-year-old woman states that many of her peers underwent hormone replacement therapy (HRT) in years past. The woman asks the nurse why her primary care provider has not yet proposed this treatment for her. What fact should underlie the nurse's response to the woman?
- A. The risks of stroke and breast cancer are unacceptably high in women taking HRT.
- B. HRT was found to cause mood disturbances in many women who used it long term.
- C. HRT was found to be a significant risk factor for bone fractures and osteoporosis.
- D. The risks of chronic obstructive pulmonary disease were found to be significantly higher in women using HRT.
Correct answer: A
Rationale: The correct answer is A because the main reason HRT is not recommended for all women is due to the increased risks of stroke and breast cancer associated with its use. Hormone replacement therapy (HRT) has been linked to an elevated risk of stroke and breast cancer, which outweigh its potential benefits for many individuals. Choices B, C, and D are incorrect as they do not address the primary concerns regarding HRT use. While HRT can indeed cause mood disturbances and may affect bone health, the significant risks of stroke and breast cancer are the primary reasons why healthcare providers may choose not to recommend HRT for some women.
3. In a patient with a subconjunctival hemorrhage due to allergic rhinitis, which statement is accurate?
- A. The hemorrhage will resolve without treatment within 2 weeks.
- B. The patient should be referred for immediate ophthalmologic examination.
- C. Oral antihistamines should be started to prevent further complications.
- D. Topical corticosteroids may be considered to reduce inflammation.
Correct answer: A
Rationale: In a patient with a subconjunctival hemorrhage secondary to allergic rhinitis, the hemorrhage is typically self-limiting and will resolve on its own within 2 weeks without the need for specific treatment. Referring the patient for immediate ophthalmologic examination is not necessary unless there are other concerning symptoms. Starting oral antihistamines may help manage the underlying allergic rhinitis but is not specifically indicated for the hemorrhage. Topical corticosteroids are not routinely prescribed for subconjunctival hemorrhage as they may have limited benefit and could potentially cause complications.
4. A client is brought to the emergency department after a motor vehicle accident in which she suffered a spinal cord injury at the level of C5. Which of the following assessments should be the priority?
- A. Monitoring urinary output
- B. Monitoring heart rate and rhythm
- C. Monitoring respiratory rate
- D. Monitoring the client's pain levels
Correct answer: B
Rationale: The correct answer is monitoring heart rate and rhythm. With a C5 spinal cord injury, monitoring heart rate and rhythm is crucial as it can impact autonomic regulation. This level of injury can affect cardiac function due to the disruption of sympathetic nerve fibers. Monitoring urinary output may be important to assess for urinary retention, but it is not the priority in this scenario. While monitoring respiratory rate is essential in all patients, in this case, cardiovascular stability takes precedence. Pain management is important but is not the priority when assessing a client with a C5 spinal cord injury.
5. In a male patient with benign prostatic hyperplasia (BPH) prescribed tamsulosin (Flomax), what is the expected therapeutic effect of this medication?
- A. Decreased urinary frequency and urgency
- B. Increased urinary output
- C. Decreased blood pressure
- D. Increased hair growth
Correct answer: A
Rationale: The correct answer is A: Decreased urinary frequency and urgency. Tamsulosin is prescribed for patients with BPH to relax the muscles in the prostate and bladder neck. This relaxation helps in relieving the symptoms of BPH, such as decreased urinary flow, frequent urination, and urgency. Choice B is incorrect because tamsulosin does not increase urinary output but rather improves the flow of urine by relaxing the muscles. Choice C is incorrect as tamsulosin is not primarily used for reducing blood pressure. Choice D is also incorrect as tamsulosin does not promote increased hair growth.
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