Nursing Elites

1. Which of the following is an example of a salt?

• A. Sodium hydroxide (NaOH)
• B. Hydrochloric acid (HCl)
• C. Sodium chloride (NaCl)
• D. Sulfuric acid (Hâ‚‚SOâ‚„)

Correct answer: c

Rationale: Sodium chloride is an example of a salt. The other choices are either bases or acids.

2. Pinpoint the smallest bone in the human body.

• A. Stapes (Middle ear bone)
• B. Patella (Kneecap)
• C. Phalanges (Finger bones)
• D. Ribs

Correct answer: A

Rationale: The stapes, crucial for hearing, transmits and amplifies sound vibrations. Despite its size, it plays a vital role in auditory perception.

3. The formula for calculating ideal body weight (IBW) for men is IBW (kg) = 50 + 2.3 * (height in cm - 150). If a man is 180cm tall, what is his ideal body weight?

• A. 68kg
• B. 71kg
• C. 74kg
• D. 77kg

Correct answer: C

Rationale: Substitute the man's height (180cm) into the formula: IBW = 50 + 2.3 * (180 - 150) = 74kg.

4. What part of speech is the underlined word in the sentence "The students eagerly awaited the results"?

• A. Verb
• B. Noun
• C. Adjective
• D. Adverb

Correct answer: B

Rationale: Option B identifies "results" as the direct object of the verb "awaited," making it a noun.

5. A lab test result shows a blood glucose level of 5.5 millimoles per liter (mmol/L). What is the equivalent level in milligrams per deciliter (mg/dL)?

• A. 55 mg/dL
• B. 5.5 mg/dL
• C. 0.55 mg/dL
• D. 550 mg/dL

Correct answer: A

Rationale: This requires a double conversion: millimoles to milligrams and liters to deciliters. 1 millimole is equal to 180.15 milligrams, and 1 liter is equal to 10 deciliters. Multiply the glucose level (5.5 mmol/L) by the conversion factor for millimoles to milligrams (180.15 mg/mmol) and then divide by the conversion factor for liters to deciliters (10 dL/L): 5.5 mmol/L * 180.15 mg/mmol / 10 dL/L ≈ 55 mg/dL.

6. The structure surrounding and protecting the testes, maintaining optimal temperature for sperm production, is called the:

• A. Epididymis
• B. Vas deferens
• C. Scrotum
• D. Prostate gland

Correct answer: C

Rationale: The correct answer is C: Scrotum. The scrotum is the structure surrounding and protecting the testes. Its main function is to maintain the optimal temperature for sperm production by regulating the distance of the testes from the body to adjust to temperature changes. The epididymis (A) is a coiled tube where sperm mature, the vas deferens (B) is a duct that carries sperm from the testes to the urethra, and the prostate gland (D) is responsible for producing prostatic fluid that is a component of semen. Therefore, the scrotum plays a crucial role in protecting and regulating the temperature of the testes for proper sperm production.

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