Nursing Elites

1. Convert 0.075 mg to micrograms.

• A. 75 mcg
• B. 7.5 mcg
• C. 0.75 mcg
• D. 750 mcg

Correct answer: D

Rationale: To convert milligrams to micrograms, you need to multiply by 1000, not 10000. Therefore, to convert 0.075 mg to mcg, you multiply 0.075 by 1000, giving you 75 mcg. The correct answer is not provided in the choices, and the correct conversion is 75 mcg, which is not listed as an option. Choices A, B, and C are incorrect because they do not reflect the correct conversion factor. Choice D, 750 mcg, is a common mistake made by incorrectly adding a zero. It is important to remember that the conversion from milligrams to micrograms involves multiplying by 1000, not adding extra zeros.

2. The following words share a common Greek-based suffix: anthropology, biology, cosmetology, etymology, and genealogy. What is the most likely meaning of the suffix -logy?

• A. Record
• B. Study
• C. Science
• D. Technique

Correct answer: B

Rationale: The correct answer is B: 'Study.' The suffix -logy is derived from the Greek word 'logia,' meaning 'the study of.' In words like anthropology (study of humans), biology (study of life), cosmetology (study of cosmetics), etymology (study of word origins), and genealogy (study of family history), the suffix -logy indicates a field of study or discipline. Choices A, C, and D are incorrect because the suffix -logy does not signify 'record,' 'science,' or 'technique,' but rather the concept of 'study' or 'science of.'

3. Convert 5,000 milligrams to grams.

• A. 50 grams
• B. 5 grams
• C. 500 grams
• D. 0.05 grams

Correct answer: B

Rationale: To convert milligrams to grams, you need to divide by 1,000 since there are 1,000 milligrams in 1 gram. Therefore, 5,000 milligrams is equal to 5 grams (5,000 ÷ 1,000 = 5). Choice A, '50 grams,' is incorrect as it results from multiplying instead of dividing. Choice C, '500 grams,' is incorrect as it incorrectly multiplies the value. Choice D, '0.05 grams,' is incorrect as it is the result of dividing by 10 instead of 1,000.

4. During inhalation, which muscle contracts to increase the volume of the thoracic cavity, allowing air to flow into the lungs?

• A. Diaphragm
• B. Intercostal muscles
• C. Abdominal muscles
• D. Pectoral muscles

Correct answer: A

Rationale: The diaphragm is the primary muscle responsible for inhalation. When it contracts, it moves downward, increasing the volume of the thoracic cavity and creating a pressure gradient that allows air to flow into the lungs. While the intercostal muscles also play a role in expanding the chest cavity during inhalation, the diaphragm is the main muscle involved in this process. Abdominal muscles and pectoral muscles are not directly involved in the process of inhalation.

5. The important decision will be made tomorrow. Which word is the comparative form of the adjective 'important'?

• A. important
• B. importantly
• C. more important
• D. most important

Correct answer: C

Rationale: In this sentence, 'important' is the positive form of the adjective. When comparing two things, the comparative form is used, which is 'more important' in this case. 'More important' indicates a higher degree of importance when comparing two things. Therefore, 'more important' is the correct comparative form of the adjective 'important' in this context. Choice A ('important') is the positive form, not the comparative form. Choice B ('importantly') is an adverb, not a comparative form of the adjective. Choice D ('most important') is the superlative form, used to show the highest degree of importance among three or more things, not for comparing two things.

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