Nokea
What temperature in Fahrenheit is 50°C? (Enter numeric value only. If rounding is necessary, round to the nearest whole number.)
- A. 110°F
- B. 122°F
- C. 130°F
- D. 140°F
Correct Answer: B
Rationale: To convert from Celsius to Fahrenheit, use the formula: F = (C 9/5) + 32. Substituting 50°C: F = (50 9/5) + 32 = 122°F. Therefore, 50°C is approximately 122°F. Choices A, C, and D are incorrect because they do not reflect the accurate conversion of 50°C to Fahrenheit.
You may also like to solve these questions
The formula for calculating heart rate is HR = (220 - age) x 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: C
Rationale: Rationale:
Given formula: HR = (220 - age) * 0.65
Given heart rate: HR = 136.5
Substitute the given heart rate into the formula:
136.5 = (220 - age) * 0.65
Solve for age:
136.5 = 143 - 0.65age
0.65age = 143 - 136.5
0.65age = 6.5
age = 6.5 / 0.65
age = 10
Therefore, the patient's age is 50 (option C).
A newborn weighs 8 pounds 5 ounces. There are 453.59 grams per pound. What is the infant's weight in grams?
- A. A. 2268 grams
- B. B. 3629 grams
- C. C. 3770 grams
- D. D. 3856 grams
Correct Answer: B
Rationale: To convert pounds and ounces to grams:
8 pounds = 8 453.59 = 3,628.72 grams.
5 ounces = (5 · 16) 453.59 = 141.75 grams.
Total weight = 3,628.72 + 141.75 = 3,629 grams (rounded).
Therefore, the infant's weight is approximately 3,629 grams.
Choice A, 2268 grams, is incorrect as it does not account for the weight in ounces.
Choice C, 3770 grams, is incorrect as it is not the accurate converted weight.
Choice D, 3856 grams, is incorrect as it does not consider the conversion of ounces to grams.
Calculate: (88)(7.08) =
- A. 862.5
- B. 88.040
- C. 64.252
- D. 623.04
Correct Answer: D
Rationale: To find the product of 88 and 7.08, simply multiply the two numbers: 88 x 7.08 = 623.04. Therefore, the correct answer is D. Choices A, B, and C are incorrect because they do not result from the correct multiplication of 88 and 7.08.
Round to the nearest whole number. Change the fraction to a percent: 17/80 =
- A. 20%
- B. 21%
- C. 22%
- D. 23%
Correct Answer: B
Rationale: To convert 17/80 to a percent, we divide 17 by 80 to get 0.2125. Multiplying by 100, we get 21.25%. Rounding to the nearest whole number, 21.25% becomes 21%. Choice A (20%) is incorrect because rounding 21.25% down to the nearest whole number gives 21%. Choice C (22%) is incorrect as it is the next whole number after 21. Choice D (23%) is incorrect as it is more than 21.25% and thus rounds up to 22%.
A medication order is for 250 micrograms of a drug to be administered subcutaneously. The available syringe measures in milliliters. How many milliliters should the healthcare professional draw up?
- A. 0.00025 milliliters
- B. 0.0025 milliliters
- C. 0.025 milliliters
- D. 0.25 milliliters
Correct Answer: D
Rationale: 1 milliliter (mL) is equal to 1000 micrograms (mcg). Therefore, to find out how many milliliters are needed for 250 micrograms: 250 mcg · 1000 = 0.25 mL. So, the healthcare professional should draw up 0.25 milliliters of the drug to administer 250 micrograms subcutaneously.
Choice A, 0.00025 milliliters, is incorrect as it is too small a volume for the required dosage. Choice B, 0.0025 milliliters, is also too small. Choice C, 0.025 milliliters, is 100 times greater than the correct answer of 0.25 milliliters. Therefore, the correct answer is 0.25 milliliters.