1. Cardiovascular System Disorders and Pharmacological Management
2. Respiratory System Disorders and Ventilatory Support
3. Endocrine and Metabolic Disorders Including Diabetes Management
4. Gastrointestinal and Hepatic Disorders With Nutritional Implications
5. Renal and Genitourinary Disorders Including Fluid and Electrolyte
Balance
6. Neurological and Musculoskeletal Disorders With Rehabilitation Focus
7. Infectious Diseases, Sepsis, and Antimicrobial Stewardship
8. Hematologic and Oncologic Disorders Including Transfusion Practices
9. Mental Health, Psychiatric Disorders, and Psychopharmacology
10. Maternal, Pediatric, and Perioperative Nursing Care Across the Lifespan
Apex Mock Exam
,1. A client admitted with acute decompensated heart failure presents with
bilateral crackles, jugular venous distention, and an oxygen saturation of
86 percent on room air. Which immediate nursing intervention should the
nurse anticipate implementing first?
A. Administer intravenous furosemide as prescribed
B. Position the client in high Fowler's position
C. Obtain a STAT twelve-lead electrocardiogram
D. Insert an indwelling urinary catheter
Correct Answer: B
Rationale: Positioning the client in high Fowler's position promotes lung
expansion and immediate oxygenation before pharmacological
interventions. While furosemide and an electrocardiogram are important,
airway and breathing take priority. Catheter insertion is not an immediate
priority.
,2. The nurse is reviewing laboratory results for a client receiving digoxin
and notes a potassium level of 3.1 mEq/L along with new-onset nausea
and visual disturbances. Which action should the nurse take next?
A. Administer the next scheduled dose of digoxin
B. Notify the healthcare provider immediately
C. Encourage the client to increase potassium-rich foods
D. Document the findings and reassess in four hours
Correct Answer: B
Rationale: Hypokalemia potentiates digoxin toxicity, and the client is
exhibiting classic signs of toxicity including nausea and visual changes.
The provider must be notified immediately, and the next dose should be
held.
3. A nurse is caring for a client with chronic obstructive pulmonary disease
who has an oxygen saturation of 88 percent. Which oxygen delivery
method is most appropriate for this client?
, A. High-flow nasal cannula at 15 liters per minute
B. Non-rebreather mask at 10 liters per minute
C. Venturi mask at 2 to 4 liters per minute
D. Simple face mask at 8 liters per minute
Correct Answer: C
Rationale: Clients with COPD retain carbon dioxide and require controlled
low-flow oxygen to maintain saturations between 88 and 92 percent. A
Venturi mask delivers precise oxygen concentrations and is safest for this
population.
4. A client newly diagnosed with type 1 diabetes mellitus asks the nurse
why insulin must be injected rather than taken orally. Which response by
the nurse is most accurate?
A. Insulin is destroyed by gastric enzymes before it can be absorbed
B. Insulin molecules are too large to be absorbed through the stomach
lining
2. Respiratory System Disorders and Ventilatory Support
3. Endocrine and Metabolic Disorders Including Diabetes Management
4. Gastrointestinal and Hepatic Disorders With Nutritional Implications
5. Renal and Genitourinary Disorders Including Fluid and Electrolyte
Balance
6. Neurological and Musculoskeletal Disorders With Rehabilitation Focus
7. Infectious Diseases, Sepsis, and Antimicrobial Stewardship
8. Hematologic and Oncologic Disorders Including Transfusion Practices
9. Mental Health, Psychiatric Disorders, and Psychopharmacology
10. Maternal, Pediatric, and Perioperative Nursing Care Across the Lifespan
Apex Mock Exam
,1. A client admitted with acute decompensated heart failure presents with
bilateral crackles, jugular venous distention, and an oxygen saturation of
86 percent on room air. Which immediate nursing intervention should the
nurse anticipate implementing first?
A. Administer intravenous furosemide as prescribed
B. Position the client in high Fowler's position
C. Obtain a STAT twelve-lead electrocardiogram
D. Insert an indwelling urinary catheter
Correct Answer: B
Rationale: Positioning the client in high Fowler's position promotes lung
expansion and immediate oxygenation before pharmacological
interventions. While furosemide and an electrocardiogram are important,
airway and breathing take priority. Catheter insertion is not an immediate
priority.
,2. The nurse is reviewing laboratory results for a client receiving digoxin
and notes a potassium level of 3.1 mEq/L along with new-onset nausea
and visual disturbances. Which action should the nurse take next?
A. Administer the next scheduled dose of digoxin
B. Notify the healthcare provider immediately
C. Encourage the client to increase potassium-rich foods
D. Document the findings and reassess in four hours
Correct Answer: B
Rationale: Hypokalemia potentiates digoxin toxicity, and the client is
exhibiting classic signs of toxicity including nausea and visual changes.
The provider must be notified immediately, and the next dose should be
held.
3. A nurse is caring for a client with chronic obstructive pulmonary disease
who has an oxygen saturation of 88 percent. Which oxygen delivery
method is most appropriate for this client?
, A. High-flow nasal cannula at 15 liters per minute
B. Non-rebreather mask at 10 liters per minute
C. Venturi mask at 2 to 4 liters per minute
D. Simple face mask at 8 liters per minute
Correct Answer: C
Rationale: Clients with COPD retain carbon dioxide and require controlled
low-flow oxygen to maintain saturations between 88 and 92 percent. A
Venturi mask delivers precise oxygen concentrations and is safest for this
population.
4. A client newly diagnosed with type 1 diabetes mellitus asks the nurse
why insulin must be injected rather than taken orally. Which response by
the nurse is most accurate?
A. Insulin is destroyed by gastric enzymes before it can be absorbed
B. Insulin molecules are too large to be absorbed through the stomach
lining
