Ohio Licensed Practical Nurse (LPN)
Practice Exam Questions And Correct Answers
(Verified Answers) Plus Rationales |2026 Q&A |
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1. A patient is prescribed furosemide. Which electrolyte imbalance is the
nurse most likely to monitor for?
A) Hyperkalemia
B) Hypokalemia
C) Hypernatremia
D) Hypercalcemia
Rationale: Furosemide is a loop diuretic that can cause potassium loss,
leading to hypokalemia.
2. A nurse is preparing to administer morphine to a patient. Which
assessment is most important before giving the medication?
A) Blood pressure
, B) Temperature
C) Respiratory rate
D) Heart rate
Rationale: Morphine can depress respiration, so monitoring respiratory rate
is critical before administration.
3. A patient is receiving IV antibiotics for a severe infection. Which is the
best method to prevent phlebitis?
A) Use a small-gauge needle
B) Rotate IV sites every 72 hours
C) Flush with sterile water
D) Apply heat after administration
Rationale: Rotating IV sites reduces irritation and prevents phlebitis.
4. Which intervention is most appropriate for a patient with congestive
heart failure experiencing fluid overload?
A) Encourage increased sodium intake
B) Administer diuretics as ordered
C) Restrict ambulation
D) Limit oxygen therapy
Rationale: Diuretics help remove excess fluid, relieving symptoms of fluid
overload.
5. A nurse is caring for a patient with type 1 diabetes. Which insulin is
most appropriate to administer at mealtime?
, A) NPH insulin
B) Rapid-acting insulin
C) Long-acting insulin
D) Regular insulin
Rationale: Rapid-acting insulin is given at mealtime to control postprandial
blood glucose.
6. Which patient statement indicates understanding of anticoagulant
therapy with warfarin?
A) “I will take aspirin daily instead.”
B) “I will avoid foods high in vitamin K.”
C) “I will increase my intake of green leafy vegetables.”
D) “I can stop taking it when I feel better.”
Rationale: Vitamin K can interfere with warfarin effectiveness; patients
should monitor intake.
7. A nurse notes a patient’s blood pressure is 88/50 mmHg. Which action
is most appropriate?
A) Administer antihypertensive
B) Place patient in Trendelenburg position
C) Encourage ambulation
D) Restrict fluids
Rationale: Trendelenburg position can help improve venous return and blood
pressure temporarily.
, 8. Which precaution is most important for a patient with neutropenia?
A) Contact isolation
B) Avoid crowds and sick contacts
C) High-protein diet
D) Monitor blood glucose
Rationale: Neutropenic patients are at high risk for infection; limiting
exposure is crucial.
9. A patient with COPD is receiving oxygen at 2 L/min. The patient
becomes drowsy and has shallow respirations. What is the priority
action?
A) Increase oxygen flow
B) Assess and notify the healthcare provider
C) Encourage deep breathing
D) Apply a nasal cannula
Rationale: Drowsiness and shallow respirations may indicate CO2 retention;
immediate assessment and provider notification are necessary.
10. Which lab value should the nurse monitor in a patient receiving
heparin?
A) Serum creatinine
B) Potassium
C) Activated partial thromboplastin time (aPTT)
D) Platelet count
Practice Exam Questions And Correct Answers
(Verified Answers) Plus Rationales |2026 Q&A |
Instant Download Pdf
1. A patient is prescribed furosemide. Which electrolyte imbalance is the
nurse most likely to monitor for?
A) Hyperkalemia
B) Hypokalemia
C) Hypernatremia
D) Hypercalcemia
Rationale: Furosemide is a loop diuretic that can cause potassium loss,
leading to hypokalemia.
2. A nurse is preparing to administer morphine to a patient. Which
assessment is most important before giving the medication?
A) Blood pressure
, B) Temperature
C) Respiratory rate
D) Heart rate
Rationale: Morphine can depress respiration, so monitoring respiratory rate
is critical before administration.
3. A patient is receiving IV antibiotics for a severe infection. Which is the
best method to prevent phlebitis?
A) Use a small-gauge needle
B) Rotate IV sites every 72 hours
C) Flush with sterile water
D) Apply heat after administration
Rationale: Rotating IV sites reduces irritation and prevents phlebitis.
4. Which intervention is most appropriate for a patient with congestive
heart failure experiencing fluid overload?
A) Encourage increased sodium intake
B) Administer diuretics as ordered
C) Restrict ambulation
D) Limit oxygen therapy
Rationale: Diuretics help remove excess fluid, relieving symptoms of fluid
overload.
5. A nurse is caring for a patient with type 1 diabetes. Which insulin is
most appropriate to administer at mealtime?
, A) NPH insulin
B) Rapid-acting insulin
C) Long-acting insulin
D) Regular insulin
Rationale: Rapid-acting insulin is given at mealtime to control postprandial
blood glucose.
6. Which patient statement indicates understanding of anticoagulant
therapy with warfarin?
A) “I will take aspirin daily instead.”
B) “I will avoid foods high in vitamin K.”
C) “I will increase my intake of green leafy vegetables.”
D) “I can stop taking it when I feel better.”
Rationale: Vitamin K can interfere with warfarin effectiveness; patients
should monitor intake.
7. A nurse notes a patient’s blood pressure is 88/50 mmHg. Which action
is most appropriate?
A) Administer antihypertensive
B) Place patient in Trendelenburg position
C) Encourage ambulation
D) Restrict fluids
Rationale: Trendelenburg position can help improve venous return and blood
pressure temporarily.
, 8. Which precaution is most important for a patient with neutropenia?
A) Contact isolation
B) Avoid crowds and sick contacts
C) High-protein diet
D) Monitor blood glucose
Rationale: Neutropenic patients are at high risk for infection; limiting
exposure is crucial.
9. A patient with COPD is receiving oxygen at 2 L/min. The patient
becomes drowsy and has shallow respirations. What is the priority
action?
A) Increase oxygen flow
B) Assess and notify the healthcare provider
C) Encourage deep breathing
D) Apply a nasal cannula
Rationale: Drowsiness and shallow respirations may indicate CO2 retention;
immediate assessment and provider notification are necessary.
10. Which lab value should the nurse monitor in a patient receiving
heparin?
A) Serum creatinine
B) Potassium
C) Activated partial thromboplastin time (aPTT)
D) Platelet count
