Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
Find the total volume to administer:
Ordered: NS 21 gtt/min over 8 h via 10 gtt/mL tubing
This question is an excerpt from Nurse Dive's nursing test bank - Dosage calculation proctored exam (hellen fluid college). Take the full exam now
Full Explanation
Calculation:
Given values:
Flow rate = 21 gtt/min
Infusion time = 8 hours
Drop factor = 10 gtt/mL
- Convert the infusion time from hours to minutes.
Infusion time in minutes = 8 hours × 60 minutes/hour
= 480 minutes.
- Calculate the total volume in milliliters (mL).
Total Volume (mL) = (Flow rate (gtt/min) × Time (min)) / Drop factor (gtt/mL)
= (21 gtt/min × 480 min) / 10 gtt/mL
= 10080 / 10
= 1008 mL.
Similar Questions
Twenty-four correctly written as a Roman numeral is
A. XXIIII.
XXIIII: While this form was used in ancient times, it is now considered incorrect by modern Roman numeral standards. Roman numerals should follow subtractive notation, where 4 is written as IV, not IIII.
B. XXIV.
XXIV: This is the correct modern Roman numeral for 24. It combines 20 (XX) and 4 (IV) using the proper subtractive rule for the numeral 4.
C. Xxiiii
Xxiiii: Roman numerals must be written in uppercase to be considered correct. This option also uses an outdated form (IIII for 4) and mixes cases.
D. xixv
xixv: This is not a valid Roman numeral. It incorrectly places symbols and uses lowercase letters, violating both formatting and value rules.
Full Explanation
A. XXIIII: While this form was used in ancient times, it is now considered incorrect by modern Roman numeral standards. Roman numerals should follow subtractive notation, where 4 is written as IV, not IIII.
B. XXIV: This is the correct modern Roman numeral for 24. It combines 20 (XX) and 4 (IV) using the proper subtractive rule for the numeral 4.
C. Xxiiii: Roman numerals must be written in uppercase to be considered correct. This option also uses an outdated form (IIII for 4) and mixes cases.
D. xixv: This is not a valid Roman numeral. It incorrectly places symbols and uses lowercase letters, violating both formatting and value rules.
Mr. Anderson received a total of 45.25 g of a medication over 5 days. He received 4 doses per day. How much medication per dose did he receive? (round to nearest hundredth)
A. 2.30 g
B. 9.20g
C. 9.15 g
D. 2.26 g
Calculation: Calculate the total number of doses the patient received. Total doses = 4 doses/day × 5 days = 20 doses. Total amount of medication received = 45.25 g. Calculate the amount of medication per dose. Amount per dose = Total amount (g) / Total number of doses = 45.25 g / 20 doses = 2.2625 g. Round the answer to the nearest hundredth. = 2.26 g.
Full Explanation
Calculation:
- Calculate the total number of doses the patient received.
Total doses = 4 doses/day × 5 days
= 20 doses.
Total amount of medication received = 45.25 g.
- Calculate the amount of medication per dose.
Amount per dose = Total amount (g) / Total number of doses
= 45.25 g / 20 doses
= 2.2625 g.
- Round the answer to the nearest hundredth.
= 2.26 g.
Of the doses on hand, you would choose___________ to administer the ordered dose
Ordered: Coumadin 7.5 mg PO daily
A. Coumadin 10 mg scored tablets
Coumadin 10 mg scored tablets: A 10 mg tablet exceeds the ordered dose of 7.5 mg. Although it's scored, splitting it in a way that gives exactly 7.5 mg would be imprecise and not ideal for accurate dosing.
B. Coumadin 1 mg scored tables
Coumadin 1 mg scored tablets: While these allow precise dosing, it would require administering multiple tablets (e.g., seven 1 mg tablets and one half), which increases pill burden and potential for error.
C. Coumadin injection 5 mg/via
Coumadin injection 5 mg/vial: The prescribed route is oral (PO), not parenteral. Using an injection would not comply with the prescribed route of administration.
D. Coumadin 5 mg scored tablets
Coumadin 5 mg scored tablets: The 5 mg scored tablet can be used to administer one whole 5 mg tablet and one-half tablet (2.5 mg), totaling 7.5 mg. This provides an accurate and convenient way to deliver the dose.
Full Explanation
A. Coumadin 10 mg scored tablets: A 10 mg tablet exceeds the ordered dose of 7.5 mg. Although it's scored, splitting it in a way that gives exactly 7.5 mg would be imprecise and not ideal for accurate dosing.
B. Coumadin 1 mg scored tablets: While these allow precise dosing, it would require administering multiple tablets (e.g., seven 1 mg tablets and one half), which increases pill burden and potential for error.
C. Coumadin injection 5 mg/vial: The prescribed route is oral (PO), not parenteral. Using an injection would not comply with the prescribed route of administration.
D. Coumadin 5 mg scored tablets: The 5 mg scored tablet can be used to administer one whole 5 mg tablet and one-half tablet (2.5 mg), totaling 7.5 mg. This provides an accurate and convenient way to deliver the dose.