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What is the metric prefix for one-thousandth (0.001)?

A.

Centi-

B.

Micro-

C.

Deci-

D.

Milli-

Answer and Explanation

The Correct Answer is D

Rationale:
A. Centi-: The prefix "centi-" represents one-hundredth (0.01) of a unit, not one-thousandth.

B. Micro-: "Micro-" represents one-millionth (0.000001) of a unit, which is much smaller than one-thousandth.

C. Deci-: "Deci-" denotes one-tenth (0.1) of a unit, not one-thousandth.

D. Milli-: "Milli-" represents one-thousandth (0.001) of a unit, making it the correct metric prefix for this value, commonly used in milligrams (mg) and milliliters (mL).


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Related Questions

Correct Answer is B

Explanation

Rationale:
A. Quality of the medication: Quality refers to the purity or potency of a drug, which is not represented by 'Q' in the formula method and does not impact the calculation directly.

B. Quantity of the drug form: In the D/H × Q formula, 'Q' represents the quantity of the dosage form available, such as tablets, capsules, or milliliters. This allows the nurse to calculate the exact amount of medication to administer safely.

C. Questioning the dosage: While questioning unclear orders is important for safety, 'Q' in the formula does not represent questioning; it is a mathematical component used to determine dosage.

D. Quick administration: 'Q' does not indicate speed of administration. The formula is used to calculate the correct dose, not the rate at which it is given.

Correct Answer is D

Explanation

Rationale:
A. Dispensed medication: The dispensed amount refers to how much of the medication is available, which is represented by "H" in the formula, not "D."

B. Dosage interval: Dosage interval refers to the timing between doses and is not represented in the D/H × Q formula; it is considered separately in scheduling administration.

C. Drug name: The drug name identifies the medication but is not part of the calculation formula. The formula focuses on quantitative values, not identifiers.

D. Desired dose: "D" in the formula D/H × Q represents the desired dose prescribed for the patient. It is the amount of medication intended to be administered, which is critical for calculating the correct volume or number of units.

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