A patient presents to the emergency department with complaints of frequent urination, excessive thirst, chronic fatigue, and mild confusion. Serum glucose is shown to be within normal limits. Which condition is described?
Diabetes mellitus
Underactive thyroid
Acute thyroiditis
Diabetes insipidus
The Correct Answer is D
Diabetes insipidus is a disorder of water balance caused by a deficiency of antidiuretic hormone (ADH) or a resistance to its action. ADH regulates the reabsorption of water in the kidneys and prevents excessive urine output. Without enough ADH or with reduced sensitivity to it, the kidneys produce large amounts of diluted urine, leading to frequent urination and thirst. Chronic fatigue and mild confusion may result from dehydration and electrolyte imbalance. Serum glucose is not affected by diabetes insipidus, unlike diabetes mellitus, which is a disorder of carbohydrate metabolism.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Cellulitis is a bacterial infection of the deep layers of the skin and subcutaneous tissue that causes redness, swelling, warmth, and pain in the affected area. It can occur as a complication of a lymphatic blockage because lymphedema (swelling due to impaired lymphatic drainage) can impair the skin's barrier function and make it more susceptible to infection.
Correct Answer is B
Explanation
A. Hyperglycemia: Hyperglycemia is characteristic of diabetes mellitus, not diabetes insipidus. Diabetes insipidus involves an issue with antidiuretic hormone (ADH) and water balance, not glucose regulation.
B. Polydipsia: This is a hallmark symptom of diabetes insipidus. It refers to excessive thirst due to the body’s inability to retain water, leading to dehydration and compensatory increased fluid intake.
C. Weight gain: Weight gain is not typically associated with diabetes insipidus. The condition usually leads to weight loss due to fluid loss.
D. Oliguria: Oliguria (reduced urine output) is the opposite of what occurs in diabetes insipidus. The condition is characterized by polyuria, or excessive urination, due to the kidneys' inability to concentrate urine.
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