ATI RN
ATI Pathophysiology
1. In the ICU setting, a client transported from surgery following open heart bypass grafting will likely have his or her core temperature measured by:
- A. oral thermometer.
- B. rectal thermometer.
- C. esophageal thermometer.
- D. temporal artery thermometer.
Correct answer: C
Rationale: An esophageal thermometer is commonly used in ICU settings to accurately measure core body temperature, especially in post-surgical patients. The esophageal thermometer provides a more precise measurement of core temperature compared to other methods like oral, rectal, or temporal artery thermometers. In the ICU, accuracy in temperature measurement is crucial for detecting and responding to changes promptly, making the esophageal thermometer the preferred choice in this scenario.
2. What condition can be caused by an excessive amount of growth hormone released by the pituitary gland in childhood?
- A. Acromegaly
- B. Gigantism
- C. Syndrome of inappropriate antidiuretic hormone
- D. Dwarfism
Correct answer: B
Rationale: Gigantism is the correct answer. It is a condition caused by excessive growth hormone release before the epiphyseal plates close, leading to abnormal growth. Acromegaly (choice A) is caused by excess growth hormone after the epiphyseal plates close, resulting in enlargement of bones and tissues. Syndrome of inappropriate antidiuretic hormone (choice C) is characterized by the excessive release of antidiuretic hormone, leading to water retention and dilutional hyponatremia. Dwarfism (choice D) is a condition characterized by significantly below-average height.
3. In a patient with HIV infected with Mycobacterium avium complex from an indoor pool, which of the following medications is the recommended treatment for MAC?
- A. Clarithromycin
- B. Isoniazid (INH)
- C. Rifabutin
- D. Azithromycin
Correct answer: A
Rationale: The correct answer is Clarithromycin. Clarithromycin is one of the recommended medications for treating Mycobacterium avium complex (MAC) infections in patients with HIV. It is a macrolide antibiotic that is effective against MAC. Isoniazid (INH) is used to treat tuberculosis, not MAC. Rifabutin is another medication used in the treatment of MAC infections, but clarithromycin is preferred as a first-line agent. Azithromycin is also used in the treatment of MAC infections; however, clarithromycin is more commonly recommended due to its efficacy and safety profile.
4. An 8-year-old boy has been diagnosed with a sex hormone deficiency and has begun a course of treatment with testosterone. What change in the boy's health status would necessitate a stop to the course of treatment?
- A. Excessive growth in height
- B. Signs of puberty
- C. Recurrent urinary tract infections
- D. Increased blood pressure
Correct answer: B
Rationale: In an 8-year-old boy with a sex hormone deficiency being treated with testosterone, the appearance of signs of puberty would necessitate stopping the treatment. Testosterone therapy in this case aims to supplement the deficient sex hormones but should not trigger premature puberty. Excessive growth in height (choice A) is not a typical reason to stop testosterone therapy. Recurrent urinary tract infections (choice C) and increased blood pressure (choice D) are not directly related to testosterone therapy in this context.
5. A female patient is taking combined hormonal contraceptives to prevent pregnancy. She visits the gynecology clinic and is noted to have a blood pressure of 176/102 mm Hg. The patient is started on enalapril mesylate 10 mg. In collaboration with the primary care provider, what other patient teaching should be provided based on her current medication regimen?
- A. Instruct on a low-salt diet.
- B. Instruct to discontinue the contraceptives.
- C. Instruct on the use of relaxation techniques to decrease stress.
- D. Instruct on the rationale for increasing the contraceptive dose.
Correct answer: A
Rationale: Women on hormonal contraceptives and antihypertensives like enalapril should be counseled to adopt a low-salt diet if severe hypertension occurs. This dietary modification can help in managing blood pressure levels. Instructing to discontinue the contraceptives is crucial in cases of severe hypertension as it poses an increased risk of cardiovascular events. Instructing on relaxation techniques may have some benefits in reducing stress levels but addressing the root cause, such as discontinuing contraceptives in this scenario, is more critical. There is no rationale for increasing the contraceptive dose when hypertension is present; in fact, it should be stopped to prevent complications.
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