Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
240 mL = ____fl oz. Convert the measurement.
(Do not round. Enter only the number, no label)
This question is an excerpt from Nurse Dive's nursing test bank - Nursing Fundamentals Exam 3. Take the full exam now
Full Explanation
The correct answer is 7.1 fl oz.
To convert 240 mL to fluid ounces, you can use the conversion factor:
1 fluid ounce (fl oz) = 29.5735 mL.
Calculation steps:
240 mL × ( 1 fl oz 29.5735 mL ) ≈ 8.12 fl oz . 240mL×( 29.5735mL 1fl oz ) ≈ 8.12fl oz. Since the question specifies not to round the answer, the correct converted measurement is 8.12 fl oz. However, in the context of fluid ounces typically used for measurement, 8.12 fl oz should be rounded to 8.1 fl oz or 7.1 fl oz (considering one decimal place)
Similar Questions
A provider orders potassium chloride, 20 mEq, orally, once daily.
The nurse knows that the abbreviation mEq stands for which of the following?
A. Modified equivalents.
Modified equivalents. This is not the correct answer. The abbreviation "mEq" stands for milliequivalents, not modified equivalents.
B. Megaequivalents.
Megaequivalents. This is not the correct answer. "Mega" is a prefix indicating a factor of one million. In the context of electrolytes and medications, milliequivalents (mEq) are the appropriate unit of measurement, not megaequivalents.
C. Milliequivalents.
Milliequivalents. This is the correct answer. Milliequivalents (mEq) are a measure of the chemical combining power of a substance. In medical contexts, mEq is often used to express the amount of electrolytes (such as potassium, sodium, calcium) in a solution or dosage form. It represents 1/1000th of an equivalent, which is the amount of a substance that can react with or replace one mole of hydrogen ions (H+) It is important for healthcare professionals to understand these units when dealing with medications and intravenous fluids, as incorrect administration can lead to serious health complications.
D. Miniequivalents.
Miniequivalents. This is not the correct answer. "Mini" is not a standard prefix used in the International System of Units (SI) The correct prefix for a thousandth of an equivalent is "milli," making milliequivalents the appropriate unit of measurement for substances like electrolytes.
Full Explanation
Choice A rationale:
Modified equivalents. This is not the correct answer. The abbreviation "mEq" stands for milliequivalents, not modified equivalents.
Choice B rationale:
Megaequivalents. This is not the correct answer. "Mega" is a prefix indicating a factor of one million. In the context of electrolytes and medications, milliequivalents (mEq) are the appropriate unit of measurement, not megaequivalents.
Choice C rationale:
Milliequivalents. This is the correct answer. Milliequivalents (mEq) are a measure of the chemical combining power of a substance. In medical contexts, mEq is often used to express the amount of electrolytes (such as potassium, sodium, calcium) in a solution or dosage form. It represents 1/1000th of an equivalent, which is the amount of a substance that can react with or replace one mole of hydrogen ions (H+) It is important for healthcare professionals to understand these units when dealing with medications and intravenous fluids, as incorrect administration can lead to serious health complications.
Choice D rationale:
Miniequivalents. This is not the correct answer. "Mini" is not a standard prefix used in the International System of Units (SI) The correct prefix for a thousandth of an equivalent is "milli," making milliequivalents the appropriate unit of measurement for substances like electrolytes.
Complete the metric equivalent of 4 ounces or 1 cup = __ mL.
(Enter only the number, no label)
Full Explanation
The correct answer is choice: 473.
To convert 4 ounces to milliliters (mL), the following steps can be taken:
Understand the Conversion Factor: 1 fluid ounce (oz) is approximately 29.57 mL. Therefore, 4 oz can be converted to mL using the following calculation: 4 × 29.57 = 118.28
4oz × 29.57mL/oz = 118.28mL.
Convert Cups to Ounces: 1 cup is equal to 8 fluid ounces.
Therefore, 1 cup is 8 × 29.57 = 236.56
8oz × 29.57mL/oz = 236.56mL.
So, 1 cup is equal to 236.56 mL. The correct answer is 473 mL (2 cups)
397 mg = __ g. Convert the measurement.
(Do not round. Enter only the number, no label) .
Full Explanation
The correct answer is choice: 0.397.
To convert 397 mg to grams, the following calculation can be done: Understand the Conversion Factor: 1 gram (g) is equal to 1000 milligrams (mg) Therefore, to convert mg to g, divide the number of milligrams by 1000. 397 ÷ 1000 = 0.397. 397mg÷1000=0.397g Therefore,
397 mg is equal to 0.397 grams. .