NCLEX Pharmacology Actual Exam Review 2026/2027: 150
Latest Questions and Correct Answers| A+ Graded
## 🔹 SET 1: DIGOXIN, LITHIUM, PHENYTOIN (Q1–30)
### 1.
A client taking digoxin has a serum level of 2.5 mg/mL. What should the nurse do?
A. Administer medication
B. Hold dose and notify provider
C. Give potassium
D. Recheck in 1 hour
**Answer:** B
**Rationale:** Toxic (>2.0). Risk of arrhythmias.
---
### 2.
Which symptom confirms digoxin toxicity?
A. Hypertension
B. Yellow vision halos
,C. Dry cough
D. Polyuria
**Answer:** B
---
### 3.
Lithium level = 1.8 mEq/L. Priority action?
A. Continue medication
B. Give next dose
C. Hold and notify provider
D. Encourage sodium restriction
**Answer:** C
**Rationale:** Toxic (>1.5).
---
### 4.
Early lithium toxicity sign?
, A. Seizures
B. Tremors
C. Coma
D. Bradycardia
**Answer:** B ([Nexus Nursing Institute][2])
---
### 5.
Phenytoin level = 25 mcg/mL. What is expected?
A. Seizures
B. Nystagmus
C. Hypertension
D. Polyphagia
**Answer:** B
---
### 6.
Latest Questions and Correct Answers| A+ Graded
## 🔹 SET 1: DIGOXIN, LITHIUM, PHENYTOIN (Q1–30)
### 1.
A client taking digoxin has a serum level of 2.5 mg/mL. What should the nurse do?
A. Administer medication
B. Hold dose and notify provider
C. Give potassium
D. Recheck in 1 hour
**Answer:** B
**Rationale:** Toxic (>2.0). Risk of arrhythmias.
---
### 2.
Which symptom confirms digoxin toxicity?
A. Hypertension
B. Yellow vision halos
,C. Dry cough
D. Polyuria
**Answer:** B
---
### 3.
Lithium level = 1.8 mEq/L. Priority action?
A. Continue medication
B. Give next dose
C. Hold and notify provider
D. Encourage sodium restriction
**Answer:** C
**Rationale:** Toxic (>1.5).
---
### 4.
Early lithium toxicity sign?
, A. Seizures
B. Tremors
C. Coma
D. Bradycardia
**Answer:** B ([Nexus Nursing Institute][2])
---
### 5.
Phenytoin level = 25 mcg/mL. What is expected?
A. Seizures
B. Nystagmus
C. Hypertension
D. Polyphagia
**Answer:** B
---
### 6.
