Oman Nurse Exam Prep OMSB Exam Questions & Answers 2026 (1–10)

Question 1

Spironolactone is a potassium-sparing diuretic. The nurse should monitor for which electrolyte imbalance?

TheoryPractice · Accepted Answer

Hyperkalemia. Spironolactone blocks aldosterone, retaining potassium; hyperkalemia is the major risk especially in patients with renal impairment or those taking ACE inhibitors.

Question 2

A patient taking warfarin develops an INR of 8.0 with active bleeding. The PRIORITY reversal agent is:

TheoryPractice · Accepted Answer

Fresh frozen plasma and IV Vitamin K. For life-threatening warfarin-related bleeding, the priority is immediate reversal with FFP (rapid factor replacement) combined with IV Vitamin K (sustained effect).

Question 3

A patient develops sudden onset of confusion, slurred speech, right-sided weakness, and facial drooping. The nurse suspects a stroke. The most critical initial action is to:

TheoryPractice · Accepted Answer

Obtain emergency CT scan of the head to differentiate ischemic from hemorrhagic stroke. An emergency non-contrast CT scan of the head is essential to differentiate ischemic stroke (treatable with tPA if eligible) from hemorrhagic stroke (where tPA is contraindicated). The time window for tPA is 3–4.5 hours from symptom onset.

Question 4

A patient who started lithium therapy 2 weeks ago presents with tremors, nausea, and a serum lithium level of 2.2 mEq/L. The nurse's priority action is to:

TheoryPractice · Accepted Answer

Withhold lithium, notify physician immediately — serum level indicates toxicity. The therapeutic lithium range is 0.6–1.2 mEq/L. A level of 2.2 mEq/L is toxic (>1.5 mEq/L). Signs include tremor, nausea, confusion, and at higher levels: seizures and cardiac arrhythmias. Lithium must be withheld and the physician notified immediately. Hydration and monitoring are key.

Question 5

A child with suspected intussusception presents with intermittent severe abdominal pain, drawing up knees to chest, and 'currant jelly' stools. The most appropriate initial diagnostic study is:

TheoryPractice · Accepted Answer

Air or water-soluble contrast enema (both diagnostic and therapeutic). Intussusception (telescoping of bowel) is diagnosed and often treated with an air or hydrostatic (water-soluble contrast) enema under fluoroscopy. This is both diagnostic and therapeutic (reduces the intussusception in 75–90% of cases). 'Currant jelly' stool is a classic but late sign.

Question 6

In Oman, health promotion activities are primarily delivered at the community level through which mechanism?

TheoryPractice · Accepted Answer

MOH health education programs at primary healthcare centers, schools, workplaces, and community outreach via health nurses. Oman's health promotion strategy is delivered through MOH primary healthcare centers, the school health program, workplace health initiatives, and community outreach by public health and community nurses. Health education focuses on smoking cessation, diabetes prevention, obesity, and vaccination uptake.

Question 7

Post-operatively, the nurse assesses for malignant hyperthermia. The classic presenting sign is:

TheoryPractice · Accepted Answer

Rapid rise in core temperature, muscle rigidity, and tachycardia after anesthesia. Malignant hyperthermia is a life-threatening response to volatile anesthetics causing hypermetabolism: rapid hyperthermia, severe muscle rigidity, tachycardia, and acidosis.

Question 8

Which nursing action is most important during the immediate post-extubation period?

TheoryPractice · Accepted Answer

Monitor respiratory rate, SpO₂, work of breathing, and for signs of stridor or laryngospasm. After extubation, the nurse must closely monitor: respiratory rate and quality, SpO₂, level of consciousness, and especially for stridor/laryngospasm (from upper airway edema or laryngeal spasm). Supplemental oxygen is routinely provided initially. Reintubation equipment must be immediately available.

Question 9

The nurse is assessing a patient with a suspected stroke. Which tool is used for rapid ED stroke recognition?

TheoryPractice · Accepted Answer

Cincinnati Prehospital Stroke Scale. The Cincinnati Prehospital Stroke Scale (Facial droop, Arm drift, Speech) is a validated rapid screening tool for stroke in prehospital and emergency settings.

Question 10

Which nursing action best promotes patient safety when implementing 'time-out' before a surgical procedure?

TheoryPractice · Accepted Answer

Verifying the correct patient, correct site, and correct procedure with the surgical team. The surgical time-out (part of the WHO Surgical Safety Checklist) is a pre-incision pause where the entire team verbally confirms: correct patient identity, correct surgical site (marked), and correct procedure to prevent wrong-site or wrong-patient surgeries.

Oman Nurse Exam Prep OMSB Exam Questions & Answers 2026 (1–10)

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