FOUNDATIONS OF NURSING (NUR 155): NUR155
EXAM 3 REVIEW GUIDE: 300 ACTUAL
QUESTIONS AND CORRECT ANSWERS WITH
RATIONALE LATEST UPDATE ALREADY
GRADED A+ ASSURED PASS
This NUR 155 Exam 3 study guide provides 300 unique multiple-choice questions
covering medication administration, wound care, oxygenation, mobility, fluid and
electrolyte balance, safety and infection control, perioperative nursing, and
legal/ethical issues. Each question includes four options, the correct answer, and a
detailed rationale. Organized into eight sections, it mirrors Galen College of
Nursing’s foundations course, emphasizing clinical judgment, prioritization, and
safety. Designed for nursing students preparing for Exam 3, it simulates realistic
patient scenarios. Use alongside course materials to assess readiness, reinforce key
concepts, and build confidence for the exam.
Section 1: Medication Administration and Pharmacology (1–
40)
1. When administering medications, which of the following is considered the most
critical action to prevent medication errors?
A. Checking the patient's room number against the medication administration
record
B. Verifying the patient's identity using two unique identifiers
C. Asking the patient if they know what the medication is for
D. Checking the medication label once before administration
Answer: B
Rationale: The Joint Commission requires at least two unique identifiers (e.g.,
patient name and date of birth) to ensure the medication is given to the correct
,patient. Room numbers are unreliable identifiers as patients can be moved. Asking
patients about their medications assumes they have accurate knowledge. Checking
the medication label only once is insufficient; the "Rights" of medication
administration require checking the label three times.
2. Which angle is most appropriate for administering a subcutaneous injection in a
patient with a normal amount of body fat?
A. 15 degrees
B. 30 degrees
C. 45 degrees
D. 90 degrees
Answer: C
Rationale: Subcutaneous injections are typically administered at a 45-degree angle
for standard patients or 90 degrees if there is more adipose tissue.
3. A nurse is preparing to administer an intramuscular (IM) injection. Which site is
preferred for its lack of large nerves and blood vessels?
A. Dorsogluteal
B. Ventrogluteal
C. Deltoid
D. Vastus Lateralis
Answer: B
Rationale: The ventrogluteal site is the preferred and safest site for IM injections in
adults because it is away from major nerves and blood vessels.
4. What is the first action a nurse should take after realizing a medication error has
occurred?
A. Complete an incident report
B. Notify the healthcare provider
C. Assess the patient's condition
D. Call the pharmacy to verify the dose
Answer: C
,Rationale: Patient safety is the priority; the nurse must first assess the patient for
any adverse effects before notifying others or documenting the error.
5. Which of the following is a "Right" of medication administration?
A. Right Room
B. Right Hospital
C. Right Physician
D. Right Documentation
Answer: D
Rationale: The core rights include Right Patient, Right Drug, Right Dose, Right
Route, Right Time, and Right Documentation. Right Room and Right Hospital are
not standard rights. Right Physician is not one of the traditional rights.
6. A nurse is preparing to administer medications to four patients. Which action
best demonstrates appropriate medication-safety practice?
A. Prepare medications for two patients at the same time to improve efficiency
B. Document medications immediately before administration
C. Compare the medication label with the medication administration record during
preparation and again before administration
D. Ask another nurse to identify unfamiliar medications after they have been
prepared
Answer: C
Rationale: Medication safety requires systematic verification of the medication,
patient, dose, route, timing, and other applicable rights throughout the preparation
and administration process. Preparing multiple patients' medications
simultaneously increases the risk of error.
7. Which medication route has the slowest onset of action?
A. Intravenous
B. Intramuscular
C. Subcutaneous
D. Oral
, Answer: D
Rationale: Oral medications must undergo absorption through the gastrointestinal
tract, making their onset of action slower than IV, IM, or subcutaneous routes.
8. A nurse is administering a medication via the enteral route. Which action is most
appropriate?
A. Administer the medication with the patient in a supine position
B. Flush the feeding tube with 30 mL of water before and after medication
administration
C. Mix all medications together before administering through the feeding tube
D. Administer medications while the feeding tube is on continuous suction
Answer: B
Rationale: Flushing the feeding tube with water before and after medication
administration prevents clogging and ensures the medication is delivered
completely. Patients should be positioned upright. Medications should be
administered one at a time, not mixed together.
9. Which of the following is a high-alert medication requiring an independent
double-check?
A. Acetaminophen
B. Insulin
C. Multivitamin
D. Docusate
Answer: B
Rationale: Insulin is a high-alert medication with a narrow therapeutic index and
significant potential for harm if administered incorrectly. High-alert medications
require an independent double-check by a second nurse before administration.
10. A nurse is calculating a medication dose. The order is for 0.5 mg. The available
concentration is 1 mg/2 mL. How many mL should the nurse administer?
A. 0.5 mL
EXAM 3 REVIEW GUIDE: 300 ACTUAL
QUESTIONS AND CORRECT ANSWERS WITH
RATIONALE LATEST UPDATE ALREADY
GRADED A+ ASSURED PASS
This NUR 155 Exam 3 study guide provides 300 unique multiple-choice questions
covering medication administration, wound care, oxygenation, mobility, fluid and
electrolyte balance, safety and infection control, perioperative nursing, and
legal/ethical issues. Each question includes four options, the correct answer, and a
detailed rationale. Organized into eight sections, it mirrors Galen College of
Nursing’s foundations course, emphasizing clinical judgment, prioritization, and
safety. Designed for nursing students preparing for Exam 3, it simulates realistic
patient scenarios. Use alongside course materials to assess readiness, reinforce key
concepts, and build confidence for the exam.
Section 1: Medication Administration and Pharmacology (1–
40)
1. When administering medications, which of the following is considered the most
critical action to prevent medication errors?
A. Checking the patient's room number against the medication administration
record
B. Verifying the patient's identity using two unique identifiers
C. Asking the patient if they know what the medication is for
D. Checking the medication label once before administration
Answer: B
Rationale: The Joint Commission requires at least two unique identifiers (e.g.,
patient name and date of birth) to ensure the medication is given to the correct
,patient. Room numbers are unreliable identifiers as patients can be moved. Asking
patients about their medications assumes they have accurate knowledge. Checking
the medication label only once is insufficient; the "Rights" of medication
administration require checking the label three times.
2. Which angle is most appropriate for administering a subcutaneous injection in a
patient with a normal amount of body fat?
A. 15 degrees
B. 30 degrees
C. 45 degrees
D. 90 degrees
Answer: C
Rationale: Subcutaneous injections are typically administered at a 45-degree angle
for standard patients or 90 degrees if there is more adipose tissue.
3. A nurse is preparing to administer an intramuscular (IM) injection. Which site is
preferred for its lack of large nerves and blood vessels?
A. Dorsogluteal
B. Ventrogluteal
C. Deltoid
D. Vastus Lateralis
Answer: B
Rationale: The ventrogluteal site is the preferred and safest site for IM injections in
adults because it is away from major nerves and blood vessels.
4. What is the first action a nurse should take after realizing a medication error has
occurred?
A. Complete an incident report
B. Notify the healthcare provider
C. Assess the patient's condition
D. Call the pharmacy to verify the dose
Answer: C
,Rationale: Patient safety is the priority; the nurse must first assess the patient for
any adverse effects before notifying others or documenting the error.
5. Which of the following is a "Right" of medication administration?
A. Right Room
B. Right Hospital
C. Right Physician
D. Right Documentation
Answer: D
Rationale: The core rights include Right Patient, Right Drug, Right Dose, Right
Route, Right Time, and Right Documentation. Right Room and Right Hospital are
not standard rights. Right Physician is not one of the traditional rights.
6. A nurse is preparing to administer medications to four patients. Which action
best demonstrates appropriate medication-safety practice?
A. Prepare medications for two patients at the same time to improve efficiency
B. Document medications immediately before administration
C. Compare the medication label with the medication administration record during
preparation and again before administration
D. Ask another nurse to identify unfamiliar medications after they have been
prepared
Answer: C
Rationale: Medication safety requires systematic verification of the medication,
patient, dose, route, timing, and other applicable rights throughout the preparation
and administration process. Preparing multiple patients' medications
simultaneously increases the risk of error.
7. Which medication route has the slowest onset of action?
A. Intravenous
B. Intramuscular
C. Subcutaneous
D. Oral
, Answer: D
Rationale: Oral medications must undergo absorption through the gastrointestinal
tract, making their onset of action slower than IV, IM, or subcutaneous routes.
8. A nurse is administering a medication via the enteral route. Which action is most
appropriate?
A. Administer the medication with the patient in a supine position
B. Flush the feeding tube with 30 mL of water before and after medication
administration
C. Mix all medications together before administering through the feeding tube
D. Administer medications while the feeding tube is on continuous suction
Answer: B
Rationale: Flushing the feeding tube with water before and after medication
administration prevents clogging and ensures the medication is delivered
completely. Patients should be positioned upright. Medications should be
administered one at a time, not mixed together.
9. Which of the following is a high-alert medication requiring an independent
double-check?
A. Acetaminophen
B. Insulin
C. Multivitamin
D. Docusate
Answer: B
Rationale: Insulin is a high-alert medication with a narrow therapeutic index and
significant potential for harm if administered incorrectly. High-alert medications
require an independent double-check by a second nurse before administration.
10. A nurse is calculating a medication dose. The order is for 0.5 mg. The available
concentration is 1 mg/2 mL. How many mL should the nurse administer?
A. 0.5 mL
