Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
When using the formula method for medication calculations, what does 'D' represent?
A. Desired dose
Desired dose: In the formula D/H × Q, "D" represents the desired dose prescribed for the patient. It is the amount of medication that the nurse aims to administer, which is essential for accurate and safe dosing.
B. Quantity
Quantity: Quantity ("Q") refers to the amount of the medication form available, not the desired dose.
C. Dose on hand
Dose on hand: The dose on hand ("H") represents the concentration or strength of the available medication, not the prescribed amount.
D. Dilution factor
Dilution factor: Dilution factor is used when adjusting concentrations for administration but is not represented by "D" in the standard formula method.
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Full Explanation
Rationale:
A. Desired dose: In the formula D/H × Q, "D" represents the desired dose prescribed for the patient. It is the amount of medication that the nurse aims to administer, which is essential for accurate and safe dosing.
B. Quantity: Quantity ("Q") refers to the amount of the medication form available, not the desired dose.
C. Dose on hand: The dose on hand ("H") represents the concentration or strength of the available medication, not the prescribed amount.
D. Dilution factor: Dilution factor is used when adjusting concentrations for administration but is not represented by "D" in the standard formula method.
Similar Questions
Which factor is most likely to affect the absorption rate of an oral medication in a patient with gastrointestinal issues?
A. The patient's age.
The patient's age: Age can influence metabolism and drug distribution, but it does not directly alter the absorption rate in the gastrointestinal tract as much as motility does.
B. The patient's blood pressure.
The patient's blood pressure: Blood pressure affects circulation but has minimal direct impact on the rate at which oral medications are absorbed in the GI tract.
C. The patient's hydration status.
The patient's hydration status: Hydration may slightly influence gastrointestinal function but is not a primary determinant of drug absorption compared to motility changes.
D. Increased gastrointestinal motility.
Increased gastrointestinal motility: Rapid GI motility can decrease the time the medication is in contact with the absorptive surfaces, reducing absorption. Conversely, slowed motility can increase absorption. Therefore, motility changes in patients with GI issues significantly affect oral drug absorption.
Full Explanation
Rationale:
A. The patient's age: Age can influence metabolism and drug distribution, but it does not directly alter the absorption rate in the gastrointestinal tract as much as motility does.
B. The patient's blood pressure: Blood pressure affects circulation but has minimal direct impact on the rate at which oral medications are absorbed in the GI tract.
C. The patient's hydration status: Hydration may slightly influence gastrointestinal function but is not a primary determinant of drug absorption compared to motility changes.
D. Increased gastrointestinal motility: Rapid GI motility can decrease the time the medication is in contact with the absorptive surfaces, reducing absorption. Conversely, slowed motility can increase absorption. Therefore, motility changes in patients with GI issues significantly affect oral drug absorption.
A patient is prescribed a medication that is unfamiliar to the nurse. What is the nurse's best course of action?
A. Consult with a colleague who is more experienced with the medication.
Consult with a colleague who is more experienced with the medication: Consulting a colleague can provide guidance, but the nurse must personally verify the medication’s indications, dosage, and safety before administration.
B. Administer the medication and observe the patient's response.
Administer the medication and observe the patient's response: Administering an unfamiliar medication without verification is unsafe and increases the risk of errors or adverse effects.
C. Ask the patient if they have taken it before and if they experienced side effects.
Ask the patient if they have taken it before and if they experienced side effects: While patient input can be helpful, it does not replace professional verification of the drug’s properties, interactions, or dosing.
D. Look up the medication information and verify with the prescriber if necessary.
Look up the medication information and verify with the prescriber if necessary: The nurse should research the medication, understand its indications, dosage, route, and potential adverse effects, and consult the prescriber if any uncertainty remains. This ensures safe, informed administration.
Full Explanation
Rationale:
A. Consult with a colleague who is more experienced with the medication: Consulting a colleague can provide guidance, but the nurse must personally verify the medication’s indications, dosage, and safety before administration.
B. Administer the medication and observe the patient's response: Administering an unfamiliar medication without verification is unsafe and increases the risk of errors or adverse effects.
C. Ask the patient if they have taken it before and if they experienced side effects: While patient input can be helpful, it does not replace professional verification of the drug’s properties, interactions, or dosing.
D. Look up the medication information and verify with the prescriber if necessary: The nurse should research the medication, understand its indications, dosage, route, and potential adverse effects, and consult the prescriber if any uncertainty remains. This ensures safe, informed administration.
A patient is instructed to take 3/4 cup of a liquid medication daily. Convert this to milliliters.
A. 220 ml
Calculation: Ordered Dose = 3/4 cup Conversion:1 cup = 240 mL Volume in mL = Number of cups × 240 mL = 3/4 × 240 = 180 mL
B. 200 mL
Calculation: Ordered Dose = 3/4 cup Conversion:1 cup = 240 mL Volume in mL = Number of cups × 240 mL = 3/4 × 240 = 180 mL
C. 180 mL
Calculation: Ordered Dose = 3/4 cup Conversion:1 cup = 240 mL Volume in mL = Number of cups × 240 mL = 3/4 × 240 = 180 mL
D. 160 ml
Calculation: Ordered Dose = 3/4 cup Conversion:1 cup = 240 mL Volume in mL = Number of cups × 240 mL = 3/4 × 240 = 180 mL
Full Explanation
Calculation:
Ordered Dose = 3/4 cup
Conversion:1 cup = 240 mL
Volume in mL = Number of cups × 240 mL
= 3/4 × 240
= 180 mL