Which of the following is an early symptom of dehydration?
Increased pulse
Poor skin turgor
Decreased urinary output
Thirst
The Correct Answer is D
A. An increased pulse is a later symptom of dehydration, as the body attempts to maintain blood pressure and circulation when fluid levels are low.
B. Poor skin turgor is a sign of more advanced dehydration and is usually detected when skin remains tented after being pinched.
C. Decreased urinary output typically occurs as dehydration progresses and the body conserves water, but it is not usually the first sign.
D. Thirst is one of the earliest and most common symptoms of dehydration, as the body signals the need for water intake to restore fluid balance. This is the correct answer.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The parathyroid glands regulate calcium and phosphate levels in the blood through the release of parathyroid hormone (PTH), not testosterone.
B. The anterior pituitary gland regulates the release of testosterone through the secretion of luteinizing hormone (LH), which stimulates the testes to produce testosterone. This is the correct gland involved in testosterone regulation.
C. The posterior pituitary releases hormones like oxytocin and antidiuretic hormone (ADH), but it does not regulate testosterone production.
D. The thyroid gland is responsible for regulating metabolism through thyroid hormones (T3 and T4), not testosterone.
Correct Answer is C
Explanation
A. Elastin is a protein found in connective tissue that provides elasticity, allowing the skin and other tissues to return to their original shape after stretching. It does not influence skin color.
B. Hemoglobin is the oxygen-carrying component of red blood cells. It gives the skin a reddish tint due to blood flow, but it is not the primary determinant of overall skin color.
C. Melanin is the pigment produced by melanocytes in the skin. The type and amount of melanin determine the color of an individual's skin, with darker skin having more melanin.
D. Keratin is a structural protein found in the skin, hair, and nails, providing strength and protection. While it contributes to the skin's texture and appearance, it does not determine skin color.
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