CALCULATING DRUG DOSAGES: H H H H
A Patient-Safe Approach to Nursing and Math
H H H H H H H H H H H H
2nd Edition
H H
Castillo | Werner-McCullough
HH HH
TESTBANK H
,Castillo/Werner-McCullough: Calculating Drug Dosages: A Patient-Safe Approach to Nursing and Math,,2e H H H H H H H H H H
Test Bank
HH
Table of Contents: HH HH
I. Safety in Medication Administration
HH HH HH HH
Chapter 1. Safety in Medication Administration
HH HH HH HH HH
Chapter 2. The Drug Label HH HH HH HH
II. Systems of Measurement
HH HH HH
Chapter 3. The Metric System HH HH HH HH
Chapter 4. The Household System HH HH HH HH
III. Methods of Calculation
HH HH HH
Chapter 5. Linear Ratio and Proportion
HH HH HH HH HH
Chapter 6. Fractional Ratio and Proportion
HH HH HH HH HH
Chapter 7. Dimensional Analysis HH HH HH
Chapter 8. Formula Method HH HH HH
IV. Administration of Medications
HH HH HH
Chapter 9. Calculating Oral Medication Doses
HH HH HH HH HH
Chapter 10. Syringes and NeedlesHH HH HH HH
Chapter 11. Calculating Parenteral Medication Dosages
HH HH HH HH HH
Chapter 12. Preparing Powdered Parenteral Medications
HH HH HH HH HH
Chapter 13. Administration of Insulin
HH HH HH HH
V. IV Therapy and Administration of Intravenous Medications
HH HH HH HH HH HH HH
Chapter 14. Intravenous Infusion and Infusion Rates
HH HH HH HH HH HH
Chapter 15. Calculating Infusion and Completion Time
HH HH HH HH HH HH
Chapter 16. Administering IV Push Medications
HH HH HH HH HH
VI. Verifying Safe Dose and Critical Care Calculations
HH HH HH HH HH HH HH
Chapter 17. Verifying Safe Dose HH HH HH HH
Chapter 18. Titration of Intravenous Medications
HH HH HH HH HH
VII. Intake and Output
HH HH HH
Chapter 19. Calculating Intake and Output
HH HH HH HH HH
Chapter 20. Calculating Parenteral Intake
HH HH HH HH
VIII. Dosages for Pediatric and Older Adult Populations
HH HH HH HH HH HH HH
Chapter 21. Considerations for the Pediatric Patient
HH HH HH HH HH HH
Chapter 22. Considerations for the Older Adult
HH HH HH HH HH HH
,Castillo/Werner-McCullough: Calculating Drug Dosages, 2e H H H H
Chapter 1: Safety in Medication Administration
HH HH HH HH HH
Castillo: Calculating Drug Dosages: A Patient-Safe Approach to Nursing and Math 2nd Edition
HH HH HH HH HH HH HH HH HH HH HH HH
MULTIPLE CHOICE HH
1. The following medication order is in the patient’s medication administration record (MAR):
HH HH HH HH HH HH HH HH HH HH HH
methylPREDnisolone 40 mg PO daily at 0900. HH HH HH HH HH HH
After reading the order, the nurse correctly determines:
HH HH HH HH HH HH HH
A ―PO‖ is an inappropriate abbreviation. HH HH HH HH
B the medication order is written correctly. HH HH HH HH HH
C 40 mg should be written as 40mg. HH HH HH HH HH HH
D tall man lettering indicates that the drug is a narcotic.
HH HH HH HH HH HH HH HH HH
ANS: B HH
Feedback
The medication order has all the required components (drug name, dose, route, and
HH HH HH HH HH HH HH HH HH HH HH HH
frequency of administration) for a drug order. ―PO‖ is an appropriate
HH HH HH HH HH HH HH HH HH HH HH
abbreviation; 40 mg is written correctly with a space between the dose and the
HH HH HH HH HH HH HH HH HH HH HH HH HH HH
unit of measurement. Tall man lettering is used to distinguish the drug from
HH HH HH HH HH HH HH HH HH HH HH HH HH
another drug
HH HH
with a similar name. HH HH HH
2. Which of the following accurately describes the ―Boxed Warning‖ found on a drug label?
HH HH HH HH HH HH HH HH HH HH HH HH HH
A It is primarily is used to identify the safe dose for the patient.
HH HH HH HH HH HH HH HH HH HH HH HH
B It is commonly found on all drug labels. HH HH HH HH HH HH HH
C It identifies serious potential risks and side effects related to drug use.
HH HH HH HH HH HH HH HH HH HH HH
D It protects the patient by providing information to decrease side effects.
HH HH HH HH HH HH HH HH HH HH
ANS: C HH
Feedback
A drug label with a boxed warning provides information to healthcare professionals
HH HH HH HH HH HH HH HH HH HH HH
and patients regarding the serious risks and side effects related to the drug. The
HH HH HH HH HH HH HH HH HH HH HH HH HH HH
Boxed Warning is not the primary source for identifying the patient’s drug
HH HH HH HH HH HH HH HH HH HH HH HH
dosage.
HH
The warning is found on specific prescription medications and does not provide
HH HH HH HH HH HH HH HH HH HH HH
information to reduce or decrease side effects.
HH HH HH HH HH HH HH
3. When practicing safety in the administration of medication, for which of the following
HH HH HH HH HH HH HH HH HH HH HH HH
medication orders should a nurse seek clarification before the administration of the
HH HH HH HH HH HH HH HH HH HH HH HH
medication?
HH
1
, Castillo/Werner-McCullough: Calculating Drug Dosages, 2e H H H H
A Regular insulin 5 u subcut now. HH HH HH HH HH
B Enoxaparin 80 mg subcut every 12 hours. HH HH HH HH HH HH
C Benadryl 50 mg PO PRN every 6 hr for itching. HH HH HH HH HH HH HH HH HH
D Ondansetron 4 mg IVP stat. HH HH HH HH
ANS: A HH
Feedback
The ―u‖ should never be used in a medication order; rather, for safety, the word
HH HH HH HH HH HH HH HH HH HH HH HH HH HH
―units‖ should be spelled out. The other answer options contain the required
HH HH HH HH HH HH HH HH HH HH HH HH
components needed to safely carry out the medication order.
HH HH HH HH HH HH HH HH
4. A nurse is reviewing a drug label with a drug name written with tall man lettering. Which
HH HH HH HH HH HH HH HH HH HH HH HH HH HH HH HH
statements shows the nurse has a correct understanding of tall man lettering on a drug
HH HH HH HH HH HH HH HH HH HH HH HH HH HH HH
label?
HH
A ―The tall man lettering means this is a high alert drug.‖
HH HH HH HH HH HH HH HH HH HH
B ―The tall man lettering helps me distinguish this drug with other drugs that
HH HH HH HH HH HH HH HH HH HH HH HH
have similar names.‖ HH HH
C ―The tall man lettering means that this drug must have a Boxed Warning.‖
HH HH HH HH HH HH HH HH HH HH HH HH
D ―The tall man lettering helps me quickly identify that this drug is an injectable
HH HH HH HH HH HH HH HH HH HH HH HH HH
drug.‖
ANS: B HH
Feedback
Tall man lettering highlights a portion of the drug name to help distinguish from
HH HH HH HH HH HH HH HH HH HH HH HH HH
similar drug names. It is not used to identify high alert drugs, highlight a boxed
HH HH HH HH HH HH HH HH HH HH HH HH HH HH HH
warning, or identify injectable drugs. HH HH HH HH
5. The following medication orders are found in the patient’s MAR:
HH HH HH HH HH HH HH HH HH
Metformin HCl 500 mg PO daily at 0900. HH HH HH HH HH HH HH
Hydrochlorothiazide 25 mg PO every 12 hr at 0900 and 2100.
HH HH HH HH HH HH HH HH HH HH HH
Digoxin .25 mg PO daily at 0900.
HH HH HH HH HH HH HH
In reading the medication orders for the 0700–1500 shift, the nurse determines that which of
HH HH HH HH HH HH HH HH HH HH HH HH HH HH
the following is the priority nursing intervention?
HH HH HH HH HH HH HH
A Clarify the metformin HCl order. HH HH HH HH
B Clarify the hydrochlorothiazide order. HH HH HH
C Clarify the digoxin order. HH HH HH
D Prepare to administer the 0900 medications. HH HH HH HH HH
ANS: C HH
2