Convert 0.04 grams to milligrams.

Correct Answer: A

Rationale: To convert 0.04 grams to milligrams, you need to multiply by 1000, not 10000. Therefore, 0.04 grams equals 40 milligrams (0.04g * 1000 = 40mg). Choice B, '4 mg,' is incorrect as it reflects the value as if it was in grams. Choice C, '400 mg,' is incorrect as it incorrectly multiplies by 100 instead of 1000. Choice D, '0.4 mg,' is incorrect as it incorrectly moves the decimal point to the right instead of multiplying by 1000.

Correct Answer: A

Rationale: The correct answer is A: 9. To find the result of multiplying 0.15 by 60, you simply multiply the two numbers together. 0.15 * 60 = 9. This calculation involves basic multiplication. Choices B, C, and D are incorrect as they do not reflect the correct product of 0.15 and 60. Understanding how to multiply decimals and whole numbers is essential in various real-life scenarios such as calculating percentages or adjusting measurements.

Correct Answer: A

Rationale: To convert milligrams to micrograms, you need to multiply by 1000. Therefore, 0.1 mg is equal to 100 mcg. This conversion is commonly used in medical calculations. Choice B (10 mcg) is incorrect because it would be the conversion from milligrams to micrograms if multiplied by 100, not 10. Choice C (1000 mcg) is incorrect as it would be the conversion from grams to micrograms if multiplied by 1000. Choice D (1 mcg) is incorrect as it represents the original unit without conversion.

Correct Answer: A

Rationale: In this question, the correct answer is A) 250 mcg. To convert milligrams (mg) to micrograms (mcg), we need to remember that 1 mg is equal to 1000 mcg. Therefore, to convert 0.25 mg to mcg, we multiply 0.25 by 1000, which equals 250 mcg. Option B) 25 mcg is incorrect because it does not account for the conversion factor of 1000 between mg and mcg. Option C) 2.5 mcg is incorrect as it is the result of a decimal error in the conversion calculation. Option D) 2500 mcg is incorrect as it mistakenly multiplies by 10 instead of 1000 to convert mg to mcg. Understanding metric conversions is crucial for healthcare professionals, as precise medication dosages often require converting between different units. This skill is also tested in exams like the TEAS to assess a candidate's ability to perform calculations accurately. By mastering these conversions, test-takers can ensure patient safety by administering the correct doses of medication.

Correct Answer: A

Rationale: To convert milligrams (mg) to micrograms (mcg), you need to multiply by 1000 since 1 mg is equal to 1000 mcg. Therefore, 0.3 mg x 1000 = 300 mcg. This conversion is crucial in healthcare to ensure accurate medication dosages. Choice B (30 mcg) is incorrect as it represents the conversion of 0.03 mg to mcg. Choice C (3000 mcg) is incorrect as it is the result of multiplying 0.3 mg by 10 instead of 1000. Choice D (3 mcg) is incorrect as it is the result of not multiplying by 1000 to convert milligrams to micrograms.