Nursing Elites

1. A doctor orders 1 gram of a medication to be administered intravenously. The available vial contains 200 milligrams per milliliter. How many milliliters of the solution should be drawn up?

• A. 4 milliliters
• B. 5 milliliters
• C. 10 milliliters
• D. 20 milliliters

Correct answer: B

Rationale: First convert grams to milligrams (1 gram * 1000 milligrams/gram = 1000 milligrams). Then, divide the desired dosage by the concentration per milliliter: 1000 milligrams / 200 milligrams/milliliter = 5 milliliters.

2. What effect does doubling the net force applied to an object have on its acceleration, assuming mass remains constant?

• A. Acceleration doubles
• B. Acceleration is halved
• C. Acceleration remains the same
• D. Acceleration quadruples

Correct answer: a

Rationale: According to Newton's second law (F = ma), if mass remains constant and force doubles, acceleration also doubles.

3. The formula for calculating heart rate is HR = (220 - age) * 0.65. If a patient's heart rate is 136.5, what is their age?

• A. 30
• B. 40
• C. 50
• D. 60

Correct answer: B

Rationale: Rearrange the formula to solve for age: age = 220 - (HR / 0.65). Substitute the heart rate (136.5) to get 40 years old.

4. The main function of the large intestine is:

• A. Digesting and absorbing nutrients
• B. Storing and mixing food
• C. Breaking down carbohydrates
• D. Absorbing water and electrolytes

Correct answer: D

Rationale: The correct answer is D: Absorbing water and electrolytes. The main function of the large intestine is to absorb any remaining water and electrolytes from the indigestible food matter that passes through it. This absorption process helps in forming solid waste (feces) and regulating the body's fluid balance. It is not primarily responsible for digesting and absorbing nutrients like the small intestine, storing and mixing food like the stomach, or breaking down carbohydrates. Understanding the role of the large intestine in water and electrolyte absorption is crucial for maintaining proper digestion and overall health.

5. Deficiency of which hormone can lead to stunted growth and developmental delays in children?

• A. Estrogen
• B. Testosterone
• C. Growth hormone
• D. Insulin

Correct answer: C

Rationale: The correct answer is C: Growth hormone. Growth hormone plays a crucial role in stimulating growth, cell reproduction, and regeneration in humans. Deficiency of growth hormone can lead to stunted growth and developmental delays in children. Estrogen and testosterone are sex hormones responsible for sexual development and characteristics, but they do not directly impact growth. Insulin is a hormone that regulates blood sugar levels and is not associated with stunted growth or developmental delays.

6. What is the main verb tense in the following sentence? "She had already left before I arrived."

• A. Present tense
• B. Past tense
• C. Future tense
• D. t perfect tense

Correct answer: D

Rationale: The verb "had left" is in the past perfect tense, indicating an action completed before another past action ("arrived").

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