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Nurse Dive Free Nursing Practice Question
Which of the following is the base unit of weight in the metric system used in clinical practice?
A. Meter
Meter: The meter is the base unit of length in the metric system, not weight. It measures distance or height rather than mass.
B. Milligram
Milligram: A milligram is a subunit of the gram (1/1000 of a gram) and is used for precise measurements, but it is not the base unit itself.
C. Gram
Gram: The gram is the base unit of weight (mass) in the metric system commonly used in clinical practice. All other weight measurements, such as milligrams and kilograms, are derived from the gram.
D. Litre
Liter: The liter is the base unit of volume in the metric system and is used for measuring fluids, not weight.
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Full Explanation
Rationale:
A. Meter: The meter is the base unit of length in the metric system, not weight. It measures distance or height rather than mass.
B. Milligram: A milligram is a subunit of the gram (1/1000 of a gram) and is used for precise measurements, but it is not the base unit itself.
C. Gram: The gram is the base unit of weight (mass) in the metric system commonly used in clinical practice. All other weight measurements, such as milligrams and kilograms, are derived from the gram.
D. Liter: The liter is the base unit of volume in the metric system and is used for measuring fluids, not weight.
Similar Questions
A nurse is reviewing a medication order for a pediatric patient. The order states, "Administer 5 mg/kg of medication X orally." The child weighs 22 kg. How much medication should the nurse administer?
A. 95 mg
Calculation: Dosage = 5 mg/kg Weight = 22 kg Dose = Dosage × Weight = 5 × 22 = 110 mg
B. 100 mg
Calculation: Dosage = 5 mg/kg Weight = 22 kg Dose = Dosage × Weight = 5 × 22 = 110 mg
C. 110 mg
Calculation: Dosage = 5 mg/kg Weight = 22 kg Dose = Dosage × Weight = 5 × 22 = 110 mg
D. 120 mg
Calculation: Dosage = 5 mg/kg Weight = 22 kg Dose = Dosage × Weight = 5 × 22 = 110 mg
Full Explanation
Calculation:
Dosage = 5 mg/kg
Weight = 22 kg
Dose = Dosage × Weight
= 5 × 22
= 110 mg
A patient is prescribed 500 mg of a medication. The available concentration is 250 mg/5 mL. How many milliliters should be administered?
A. 10 ml
Calculation: Ordered Dose = 500 mg Available Dose = 250 mg Available Volume = 5 mL Volume to administer = (Ordered Dose / Available Dose) × Available Volume = (500 / 250) × 5 = 2 × 5 = 10 mL
B. 20 ml
Calculation: Ordered Dose = 500 mg Available Dose = 250 mg Available Volume = 5 mL Volume to administer = (Ordered Dose / Available Dose) × Available Volume = (500 / 250) × 5 = 2 × 5 = 10 mL
C. 15 mL
Calculation: Ordered Dose = 500 mg Available Dose = 250 mg Available Volume = 5 mL Volume to administer = (Ordered Dose / Available Dose) × Available Volume = (500 / 250) × 5 = 2 × 5 = 10 mL
D. 5 mL
Calculation: Ordered Dose = 500 mg Available Dose = 250 mg Available Volume = 5 mL Volume to administer = (Ordered Dose / Available Dose) × Available Volume = (500 / 250) × 5 = 2 × 5 = 10 mL
Full Explanation
Calculation:
Ordered Dose = 500 mg
Available Dose = 250 mg
Available Volume = 5 mL
Volume to administer = (Ordered Dose / Available Dose) × Available Volume
= (500 / 250) × 5
= 2 × 5
= 10 mL
During medication administration, a nurse notices a discrepancy between the prescriber's order and the medication label. What should the nurse do first?
A. Ask a colleague for their opinion.
Ask a colleague for their opinion: Consulting a colleague can provide guidance, but the final clarification must come from the prescriber to ensure the order is accurate and legally authorized.
B. Contact the prescriber to clarify the order.
Contact the prescriber to clarify the order: The nurse’s first responsibility is to verify any discrepancies with the prescriber. Clarifying the order ensures patient safety, prevents medication errors, and maintains compliance with legal and professional standards.
C. Adjust the dosage according to the label.
Adjust the dosage according to the label: Changing the dose without prescriber approval is unsafe and could lead to underdosing or overdosing, placing the patient at risk for adverse effects.
D. Administer the medication as it is labeled.
Administer the medication as it is labeled: Administering the medication without resolving the discrepancy can result in serious medication errors and compromise patient safety.
Full Explanation
Rationale:
A. Ask a colleague for their opinion: Consulting a colleague can provide guidance, but the final clarification must come from the prescriber to ensure the order is accurate and legally authorized.
B. Contact the prescriber to clarify the order: The nurse’s first responsibility is to verify any discrepancies with the prescriber. Clarifying the order ensures patient safety, prevents medication errors, and maintains compliance with legal and professional standards.
C. Adjust the dosage according to the label: Changing the dose without prescriber approval is unsafe and could lead to underdosing or overdosing, placing the patient at risk for adverse effects.
D. Administer the medication as it is labeled: Administering the medication without resolving the discrepancy can result in serious medication errors and compromise patient safety.