Nursing Elites

1. Which organ system is primarily responsible for preventing water loss?

• A. The nervous system
• B. The integumentary system
• C. The lymphatic system
• D. The urinary system

Correct answer: B

Rationale: The correct answer is B: The integumentary system. The integumentary system, which includes the skin, is primarily responsible for preventing water loss from the body. The skin acts as a barrier that helps regulate moisture and prevent excessive water loss through a process known as transepidermal water loss. The nervous system (choice A) is responsible for transmitting signals throughout the body, the lymphatic system (choice C) is responsible for the immune response and fluid balance, and the urinary system (choice D) is responsible for filtering blood and producing urine, but they do not primarily prevent water loss like the integumentary system.

2. What does Distended mean?

• A. Shrunken
• B. Enlarged or expanded from pressure
• C. Collapsed
• D. Constricted

Correct answer: B

Rationale: Distended means enlarged or expanded from pressure. The term 'shrunken' (Choice A) means reduced in size, 'collapsed' (Choice C) means fallen in or disintegrated, and 'constricted' (Choice D) means narrowed or tightened. Therefore, the correct answer is B.

3. Which gland produces melatonin?

• A. Pineal gland
• B. Thyroid gland
• C. Adrenal gland
• D. Pituitary gland

Correct answer: A

Rationale: The correct answer is the Pineal gland. This gland is responsible for producing melatonin, a hormone that helps regulate the sleep-wake cycle. Melatonin production is influenced by exposure to light, with levels typically rising in the evening to promote sleep and falling in the morning to aid wakefulness. The Thyroid gland (choice B) produces hormones that regulate metabolism, the Adrenal gland (choice C) produces hormones like adrenaline and cortisol, and the Pituitary gland (choice D) controls several other glands in the endocrine system.

4. Multiply: 54 × 45. Express the result in decimal form.

• A. 0.0243
• B. 0.243
• C. 2.43
• D. 24.3

Correct answer: D

Rationale: To multiply 54 by 45, you should multiply the two numbers together: 54 x 45 = 2430. The decimal point is placed after counting the total decimal places in the numbers being multiplied. As there are no decimal places in the numbers 54 and 45, the result is 2430, which is correctly expressed as 24.3 when considering the decimal point placement. Choice A (0.0243) and Choice B (0.243) are incorrect as they represent fractions of 2430. Choice C (2.43) is incorrect as it incorrectly places the decimal point one place before the actual result.

5. Choose the meaning of the word 'indigent' in the following sentence: The hospital accepts a certain quota of indigent patients.

• A. Impoverished
• B. Resentful
• C. Apathetic
• D. Uninjured

Correct answer: A

Rationale: In this context, 'indigent' means impoverished or needy. The sentence conveys that the hospital takes in a specific number of financially disadvantaged patients. Choice B, 'Resentful,' does not align with the context of the sentence. Choice C, 'Apathetic,' does not describe the financial status of the patients. Choice D, 'Uninjured,' is unrelated to the meaning of 'indigent' in the sentence.

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