ATI LPN
Pharmacology and the Nursing Process 10th Edition Test Bank
Chapter 5 : Medication Errors: Preventing and Responding Questions
Question 1 of 5
Levothyroxine is available in 0.1-mg tablet form. Convert this dose to microgram strength, (do not round)
Correct Answer: 100 mcg
Rationale: One mg equals 1000 mcg.
To convert 0.1 mg to mcg, multiply by 1000: 0.1 * 1000 = 100 mcg, or move the decimal point three spaces to the right.
Question 2 of 5
Digoxin is available in 0.25-mg tablet form. Convert this dose to microgram strength, (do not round)
Correct Answer: 250 mcg
Rationale: One mg equals 1000 mcg.
To convert 0.25 mg to mcg, multiply by 1000: 0.25 * 1000 = 250 mcg, or move the decimal point three spaces to the right.
Question 3 of 5
The nurse is reviewing medication errors. Which situation is an example of a medication error?
Correct Answer: B
Rationale: A medication error is defined as a preventable adverse drug event that involves inappropriate medication use by a patient or health care provider. A double dose due to not cutting a pill is a preventable error. Patient refusal, hives (a possible allergic reaction), and persistent pain are not preventable errors.
Question 4 of 5
The nurse is reviewing a list of verbal medication orders. Which is the proper notation of the dose of the drug ordered?
Correct Answer: C
Rationale: Levothyroxine 0.75 mg illustrates the correct notation with a leading zero before the decimal point. Omitting the leading zero (as in A and
B) may cause the order to be misread, resulting in a large drug overdose. Trailing zeros (as in
D) are also incorrect.
Question 5 of 5
When given a scheduled morning medication, the patient states, 'I haven't seen that pill before. Are you sure it's correct?' The nurse checks the medication administration record and verifies that it is listed. Which is the nurse's best response?
Correct Answer: D
Rationale: When a patient expresses doubts about a medication, the nurse should verify the order to ensure safety. Checking the written order or with the prescriber addresses the patient's concerns, unlike the other options which dismiss or delay addressing the concern.