In adrenocortical insufficiencies, such as Addison’s disease, what causes the most severe manifestations?
An insufficient amount of triiodothyronine (T3) and thyroxine (T4)
Decreased levels of all the adrenocortical hormones
Deficiencies in the renin-angiotensin system
An insufficient amount of circulating cortisol
The Correct Answer is D
Choice A rationale
An insufficient amount of triiodothyronine (T3) and thyroxine (T4) would lead to hypothyroidism, not Addison’s disease.
Choice B rationale
Decreased levels of all the adrenocortical hormones could lead to various symptoms, but the most severe manifestations of Addison’s disease are specifically caused by an insufficient amount of circulating cortisol.
Choice C rationale
Deficiencies in the renin-angiotensin system could affect blood pressure regulation, but they would not cause the most severe manifestations of Addison’s disease.
Choice D rationale
An insufficient amount of circulating cortisol is indeed what causes the most severe manifestations of Addison’s disease. Cortisol is a hormone that helps your body respond to stress, including the stress of illness, injury or surgery. It also helps maintain your blood pressure, heart function, immune system and blood glucose (sugar) levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
A low carbohydrate diet is not a risk factor for cholelithiasis. In fact, it may help improve glycemic control and body weight among obese subjects with type 2 diabetes mellitus or impaired fasting glucose.
Choice B rationale
Native Americans on a low carbohydrate diet showed significant improvement in glycemic control and body weight.
Choice C rationale
A high-fat diet is a risk factor for cholelithiasis.
Choice D rationale
Obesity is a well-known risk factor for cholelithiasis.
Correct Answer is C
Explanation
Choice A rationale
Chest pain is not typically a symptom of breast cancer. It may be a symptom of a heart condition or other medical conditions.
Choice B rationale
Unilateral nipple discharge can be a symptom of breast cancer, but it is not usually the first clinical sign.
Choice C rationale
A painless lump in the breast is often the first noticeable symptom of breast cancer.
Choice D rationale
Breast dimpling can be a symptom of breast cancer, but it is not usually the first clinical sign.
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