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Key Facts: OMSB Internal Medicine (OEIM) Exam

100 MCQs

Single-best-answer questions on the OEIM

https://drive.google.com/file/d/1znLZ-BqPsLlK8L7lIwWvmxUa9DLwi-ZK/view

2 h 30 min

Examination duration

https://drive.google.com/file/d/1znLZ-BqPsLlK8L7lIwWvmxUa9DLwi-ZK/view

65%

Passing standard

https://drive.google.com/file/d/1znLZ-BqPsLlK8L7lIwWvmxUa9DLwi-ZK/view

USD 220

Examination fee

https://omsb.gov.om/home/infoPage?id=53

12 domains

Blueprint areas specified in August 2025 OMSB booklet

https://drive.google.com/file/d/1znLZ-BqPsLlK8L7lIwWvmxUa9DLwi-ZK/view

The OEIM features 100 single-best-answer MCQs in 2 hours 30 minutes, costs USD 220, and requires a 65% score to pass (OMSB booklet, August 2025). It is administered via Pearson VUE worldwide and at the OMSB National Test Center in Muscat. These 100 independent practice questions cover all 12 blueprint areas, led by cardiovascular (12%), pulmonary/ICU (12%), GI/hepatology (10%), hematology-oncology (10%), infectious disease (10%), and neurology (10%).

Sample OMSB Internal Medicine (OEIM) Practice Questions

Try these sample questions to review concepts for the OMSB Internal Medicine (OEIM) exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A 58-year-old man presents to the emergency department with 90 minutes of crushing substernal chest pain radiating to his left jaw and diaphoresis. An ECG reveals 3-mm ST-segment elevation in leads II, III, and aVF with reciprocal depression in leads I and aVL. The facility has an on-site catheterization laboratory ready. What is the most appropriate reperfusion strategy?
A.Intravenous alteplase infusion within 30 minutes of presentation
B.Urgent coronary artery bypass grafting within 6 hours
C.Primary percutaneous coronary intervention with a door-to-balloon goal under 90 minutes
D.Dual antiplatelet therapy and low-molecular-weight heparin with deferred outpatient catheterization
Explanation: Primary percutaneous coronary intervention (PCI) is the gold standard reperfusion modality for acute ST-elevation myocardial infarction (STEMI) when available within a door-to-balloon time of ≤90 minutes at a PCI-capable center. Fibrinolytic therapy is reserved for situations where timely primary PCI cannot be performed within 120 minutes of first medical contact. Prompt primary PCI restores epicardial coronary flow and improves survival compared with medical management or delayed intervention.
2A 64-year-old woman with ischemic cardiomyopathy and a left ventricular ejection fraction of 28% remains symptomatic with New York Heart Association (NYHA) class II dyspnea on exertion. Her current medications are lisinopril 20 mg daily, carvedilol 25 mg twice daily, and furosemide 40 mg daily. Her blood pressure is 126/78 mmHg, heart rate is 68 bpm, serum creatinine is 1.0 mg/dL, and serum potassium is 4.3 mEq/L. Which modification to her guideline-directed medical therapy provides additional proven mortality reduction?
A.Discontinue carvedilol and initiate verapamil for afterload reduction
B.Add spironolactone 25 mg daily with potassium and renal monitoring
C.Increase furosemide to 80 mg twice daily and add digoxin
D.Add isosorbide dinitrate without changing renin-angiotensin-aldosterone blockade
Explanation: Mineralocorticoid receptor antagonists (MRAs) such as spironolactone or eplerenone reduce all-cause mortality and hospitalizations in patients with heart failure with reduced ejection fraction (HFrEF) and persistent NYHA class II-IV symptoms despite beta-blocker and ACE inhibitor/ARNI therapy, provided serum potassium is <5.0 mEq/L and eGFR is >30 mL/min/1.73 m2. Adding an MRA forms one of the four foundational pillars of modern HFrEF management alongside beta-blockers, ARNI/ACEi/ARB, and SGLT2 inhibitors.
3A 71-year-old man presents with palpitations and mild fatigue for 3 days. His blood pressure is 132/84 mmHg and heart rate is 138 bpm with an irregularly irregular rhythm. An ECG confirms atrial fibrillation with rapid ventricular response without ischemic changes. He has a history of hypertension and type 2 diabetes mellitus. What is the most appropriate initial management step regarding rate control and stroke prevention?
A.Immediate synchronized electrical cardioversion without prior anticoagulation
B.Subcutaneous enoxaparin alone without ventricular rate control medications
C.Aspirin 325 mg daily with oral flecainide for pharmacologic rhythm conversion
D.IV beta-blocker or diltiazem for rate control plus anticoagulation (CHA2DS2-VASc 3)
Explanation: In a hemodynamically stable patient with atrial fibrillation with rapid ventricular response, initial therapy focuses on ventricular rate control using an intravenous or oral beta-blocker (such as metoprolol) or a non-dihydropyridine calcium channel blocker (such as diltiazem). Furthermore, this patient has a CHA2DS2-VASc score of 3 (age 65-74 = 1 point, hypertension = 1 point, diabetes = 1 point), which mandates systemic oral anticoagulation (DOAC or warfarin) to prevent thromboembolic stroke.
4A 52-year-old woman presents with persistent low-grade fevers, night sweats, and fatigue for 4 weeks. Physical examination reveals a new 3/6 holosystolic murmur at the cardiac apex radiating to the axilla, splinter hemorrhages in the nail beds, and nontender erythematous macules on her palms. What diagnostic strategy is most essential before starting antimicrobial therapy?
A.Three blood culture sets from separate sites, then echocardiography
B.Draw a single peripheral blood culture and immediately initiate oral amoxicillin
C.Perform urgent computed tomography of the chest and abdomen to locate occult abscesses
D.Obtain an antinuclear antibody panel and wait for complement levels before considering blood cultures
Explanation: The clinical picture is diagnostic of infective endocarditis (new regurgitant murmur, Janeway lesions, splinter hemorrhages, and constitutional symptoms). According to the modified Duke criteria, obtaining at least three independent sets of blood cultures from separate venipuncture sites before antibiotic administration is crucial to identify the causative organism and determine antibiotic sensitivities. Transthoracic (and often transesophageal) echocardiography must be performed promptly to evaluate for valvular vegetations and complications.
5A 76-year-old man presents with progressive exertional dyspnea and two recent episodes of presyncope while walking uphill. Cardiac auscultation reveals a harsh, late-peaking crescendo-decrescendo systolic murmur heard best at the right upper sternal border with radiation to the carotid arteries, accompanied by a delayed and diminished carotid upstroke (pulsus parvus et tardus). What is the definitive management indicated for this condition?
A.Aggressive diuresis with intravenous bumetanide and initiation of high-dose nitrates
B.Oral verapamil titrated to achieve a resting heart rate below 60 bpm
C.Serial watchful waiting with annual echocardiography until resting symptoms develop
D.Aortic valve replacement (SAVR or TAVI) after echo confirms severity
Explanation: The patient exhibits classic symptoms (exertional dyspnea and syncope/presyncope) and physical findings (late-peaking harsh systolic murmur radiating to carotids, pulsus parvus et tardus) of severe aortic stenosis. Once cardinal symptoms (angina, syncope, or heart failure) develop in severe aortic stenosis, mortality increases dramatically, and prompt aortic valve replacement (surgical SAVR or transcatheter TAVR) is the only treatment shown to improve survival and quality of life.
6A 32-year-old man presents with sharp anterior chest pain that started 24 hours ago. The pain worsens with deep inspiration and when lying supine, and improves when sitting forward. On auscultation, a high-pitched scratchy friction rub is heard along the lower left sternal border. An ECG shows widespread concave-upward ST-segment elevation with PR-segment depression in leads II, III, and aVF, and reciprocal PR elevation in lead aVR. What is the first-line medical therapy for this patient?
A.Systemic thrombolytic therapy with intravenous alteplase
B.High-dose nonsteroidal anti-inflammatory drugs (NSAIDs) plus colchicine
C.Intravenous unfractionated heparin and urgent coronary angiography
D.Oral broad-spectrum fluoroquinolone for 14 days
Explanation: The clinical presentation and ECG findings (pleuritic positional chest pain, friction rub, diffuse concave ST elevation with PR depression) are characteristic of acute pericarditis. First-line therapy consists of high-dose NSAIDs (such as ibuprofen 600-800 mg three times daily or aspirin) combined with colchicine (0.5 mg once or twice daily for 3 months). Colchicine significantly reduces symptom duration and decreases the recurrence rate of acute pericarditis.
7A 62-year-old man with a history of anterior wall myocardial infarction 3 years ago presents to the emergency room with palpitations and lightheadedness. His blood pressure is 114/72 mmHg, respiratory rate is 18 breaths/min, and oxygen saturation is 98% on room air. The monitor demonstrates a regular wide-complex tachycardia at a rate of 170 bpm with a QRS duration of 160 ms and AV dissociation. What is the most appropriate initial intervention?
A.IV amiodarone (or procainamide), ready to cardiovert if he deteriorates
B.Intravenous adenosine 6 mg rapid push via a central vein
C.Immediate unsynchronized defibrillation at 360 Joules
D.Oral verapamil 120 mg and discharge home if heart rate decreases
Explanation: A regular wide-complex tachycardia in a patient with underlying structural heart disease (prior MI) is ventricular tachycardia (VT) until proven otherwise. Because the patient is currently hemodynamically stable (normal blood pressure, alert, no acute heart failure), initial management can include antiarrhythmic pharmacotherapy such as intravenous amiodarone or procainamide, with immediate preparedness for synchronized electrical cardioversion should hemodynamic instability develop.
8A 56-year-old man with poorly controlled hypertension presents with sudden-onset, severe, tearing chest pain radiating between his shoulder blades. His blood pressure is 196/110 mmHg in the right arm and 162/92 mmHg in the left arm, with a heart rate of 102 bpm. A contrast-enhanced CT angiogram reveals a Stanford Type A ascending aortic dissection extending to the aortic arch. Prior to emergent cardiothoracic surgical consultation, what is the initial medical priority?
A.Administer intravenous hydralazine as a bolus to lower blood pressure rapidly below 100 mmHg
B.Start immediate intravenous unfractionated heparin to prevent thrombosis in the false lumen
C.IV beta-blocker (esmolol/labetalol) to HR <60, then vasodilator if SBP >120
D.Administer sublingual nitroglycerin and order an urgent transthoracic echocardiogram before starting any intravenous infusions
Explanation: Initial medical management of acute aortic dissection focuses on reducing aortic wall shear stress (dP/dt). Intravenous beta-blockers (e.g., esmolol or labetalol) are the first-line agents to lower heart rate to <60 bpm. Only after adequate beta-blockade is achieved should vasodilators (such as nitroprusside or nicardipine) be added to achieve a target systolic blood pressure of 100-120 mmHg, because administering vasodilators alone causes reflex sympathetic activation, increasing ventricular contractility and propagation of the dissection flap.
9A 44-year-old woman is evaluated for treatment-resistant hypertension. Despite taking amlodipine 10 mg, valsartan 160 mg, and hydrochlorothiazide 25 mg daily, her clinic blood pressure remains elevated at 158/98 mmHg. Laboratory testing reveals serum sodium 142 mEq/L, serum potassium 3.1 mEq/L (normal: 3.5-5.0), and serum creatinine 0.8 mg/dL. What is the most appropriate initial diagnostic screening test for her suspected secondary hypertension?
A.24-hour urinary free cortisol excretion measurement
B.Renal artery duplex ultrasonography to rule out fibromuscular dysplasia
C.Plasma free metanephrines and normetanephrines
D.Morning plasma aldosterone concentration to plasma renin activity ratio (ARR)
Explanation: The combination of resistant hypertension and unprovoked (or easily provoked) hypokalemia strongly raises clinical suspicion for primary hyperaldosteronism (Conn syndrome). The recommended initial screening test is the morning plasma aldosterone concentration (PAC) to plasma renin activity (PRA) ratio (ARR). An ARR > 20-30 with an elevated absolute aldosterone level (>15 ng/dL) is considered positive and warrants confirmatory aldosterone suppression testing.
10A 60-year-old man presents with severe headache, confusion, blurred vision, and nausea. His blood pressure is 224/134 mmHg in both arms. Fundoscopic examination demonstrates bilateral optic disc swelling (papilledema) with flame hemorrhages and cotton-wool spots. Serum creatinine is elevated at 2.4 mg/dL from a baseline of 1.1 mg/dL. What is the recommended hemodynamic goal during the initial hour of therapy?
A.Reduce the systolic blood pressure rapidly to 120/80 mmHg within the first 15 minutes
B.Lower MAP by no more than 20–25% in the first hour with IV titratable drugs
C.Withhold intravenous medications and administer oral clonidine 0.2 mg every hour until blood pressure normalizes
D.Lower the blood pressure by exactly 50% immediately to prevent irreversible intracerebral hemorrhage
Explanation: This patient has a hypertensive emergency with hypertensive encephalopathy, grade IV retinopathy, and acute kidney injury. The guideline-recommended approach is to reduce mean arterial pressure (MAP) by no more than 20% to 25% within the first hour using continuous intravenous titratable agents (such as nicardipine, labetalol, or clevidipine). Overly rapid or excessive blood pressure reduction can exceed the lower limit of cerebral and renal autoregulation, precipitating ischemic stroke or acute tubular necrosis.

About the OMSB Internal Medicine (OEIM) Exam

The Omani Examination for Internal Medicine (OEIM) is the Oman Medical Specialty Board occupational classification examination conducted for internal medicine candidates applying for employment in local healthcare institutions across Oman. Delivered as a 100-question computer-based MCQ exam in English at the OMSB National Test Center or at Pearson VUE centres worldwide, the test assesses clinical readiness, diagnostic reasoning, and patient safety. This bank provides independent OpenExamPrep practice questions organized across the 12 blueprint domains; it is not an official OMSB resource.

Exam sponsor: Oman Medical Specialty Board (OMSB), Occupational Classification Testing Section. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

100 single-best-answer MCQs in 2 hours 30 minutes across 12 domains: Cardiovascular 12%; Pulmonary/ICU 12%; GI/hepatology 10%; Hematology-oncology 10%; Infectious disease 10%; Neurology 10%; Endocrinology 8%; Nephrology 8%; General internal medicine 8%; Rheumatology 8%; Geriatrics 2%; and Statistics 2% (each may vary by up to 5 percentage points).

Time Limit

2 hours 30 minutes

Passing Score

65%

Exam / Certification Fees

USD 220

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

12%

Cardiovascular

Coronary artery disease, acute coronary syndromes, acute and chronic heart failure, atrial fibrillation and ventricular arrhythmias, valvular heart disease, infective endocarditis, pericarditis, aortic dissection, and secondary hypertension.

12%

Pulmonary/ICU

Chronic obstructive pulmonary disease, asthma exacerbation, idiopathic pulmonary fibrosis, sarcoidosis, acute pulmonary embolism, pleural effusions, severe community-acquired pneumonia, acute respiratory distress syndrome (ARDS), septic and cardiogenic shock, and invasive mechanical ventilation.

10%

GI/hepatology

Upper and lower gastrointestinal bleeding, peptic ulcer disease and Helicobacter pylori, Crohn's disease and ulcerative colitis, cirrhosis complications (variceal bleeding, ascites, SBP, hepatic encephalopathy), viral hepatitis B and C, acute pancreatitis, and biliary tract emergencies.

10%

Hematology-oncology

Microcytic, normocytic, and macrocytic anemias, sickle cell disease and thalassemia syndromes, immune thrombocytopenic purpura, thrombotic microangiopathies (TTP/HUS), deep vein thrombosis and anticoagulation, acute and chronic leukemias, lymphomas, multiple myeloma, solid tumor presentations, and oncologic emergencies (febrile neutropenia, hypercalcemia of malignancy, cord compression).

10%

Infectious disease

Bacterial sepsis, hospital-acquired and ventilator-associated pneumonia, central line-associated bloodstream infections, catheter-associated urinary tract infections, infective endocarditis Duke criteria and empiric regimens, pulmonary and extrapulmonary tuberculosis, HIV infection and opportunistic infections, malaria, brucellosis, and Oman National Antimicrobial Guide (2016) prescribing standards.

10%

Neurology

Acute ischemic stroke thrombolysis and thrombectomy indications, intracerebral and subarachnoid hemorrhage, status epilepticus and seizure management, migraine and cluster headache, Guillain-Barré syndrome, myasthenia gravis crisis, Parkinson's disease, multiple sclerosis relapses, and coma/encephalopathy evaluation.

8%

Endocrinology

Type 1 and Type 2 diabetes management, diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic state (HHS), Graves' disease, toxic nodular goiter, Hashimoto's thyroiditis, primary and central adrenal insufficiency, Cushing's syndrome, primary hyperaldosteronism, pheochromocytoma, hypopituitarism, hypercalcemia, and primary hyperparathyroidism.

8%

Nephrology

Acute kidney injury (prerenal, intrinsic, postrenal), nephritic and nephrotic syndromes, membranous nephropathy, IgA nephropathy, diabetic kidney disease, chronic kidney disease staging and complications, hyperkalemia, hypokalemia, hyponatremia workup and correction rates, metabolic acidosis and alkalosis, and indications for urgent hemodialysis.

8%

General internal medicine

Multimorbidity, adult immunization and preventive screening, perioperative cardiac and pulmonary risk assessment, fever of unknown origin evaluation, common acute poisonings and overdoses (acetaminophen, opioids, salicylates), dermatologic signs of internal malignancy and systemic illness, and palliative symptom control.

8%

Rheumatology

Rheumatoid arthritis serology and disease-modifying therapies, systemic lupus erythematosus diagnosis and lupus nephritis, axial spondyloarthritis and reactive arthritis, gout and calcium pyrophosphate deposition disease (pseudogout), giant cell arteritis, ANCA-associated vasculitis, systemic sclerosis, and inflammatory myopathies (polymyositis/dermatomyositis).

2%

Geriatrics

Comprehensive geriatric assessment, frailty syndromes, distinguishing delirium from dementia, fall risk assessment and prevention, polypharmacy, and Beers criteria for potentially inappropriate medications in older adults.

2%

Statistics

Biostatistics fundamentals, study design types (randomized controlled trials, cohort, case-control), diagnostic test evaluation (sensitivity, specificity, positive and negative predictive values, likelihood ratios), measures of association (relative risk, odds ratio), and interpreting p-values and confidence intervals.

Preparing for the OMSB Internal Medicine (OEIM) Exam

What You Need to Know

  • Passing score: 65%
  • Assessment: 100 single-best-answer MCQs in 2 hours 30 minutes across 12 domains: Cardiovascular 12%; Pulmonary/ICU 12%; GI/hepatology 10%; Hematology-oncology 10%; Infectious disease 10%; Neurology 10%; Endocrinology 8%; Nephrology 8%; General internal medicine 8%; Rheumatology 8%; Geriatrics 2%; and Statistics 2% (each may vary by up to 5 percentage points).
  • Time limit: 2 hours 30 minutes
  • Exam / certification fees: USD 220 Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

OMSB Internal Medicine (OEIM): Suggested Study Strategy

1Prioritize high-yield core subspecialties: Cardiovascular (12%), Pulmonary/ICU (12%), GI/Hepatology (10%), Hematology-Oncology (10%), Infectious Disease (10%), and Neurology (10%) together account for 64% of the examination.
2Review the Oman National Antimicrobial Guide (2016) alongside the MGH pocket book and the Washington Manual for high-yield infectious disease management protocols and empiric antibiotic regimens.
3Focus on acute emergency algorithms in internal medicine, including acute coronary syndromes, septic shock, acute respiratory distress syndrome, stroke thrombolysis windows, diabetic ketoacidosis resuscitation, and acute hyperkalemia.
4Do not neglect the smaller domains: Geriatrics (2 questions) and Biostatistics/Epidemiology (2 questions) provide accessible scoring opportunities when understanding core screening metrics, likelihood ratios, and geriatric prescribing safety.

Frequently Asked Questions

What is the official name of the OMSB internal medicine exam?

OMSB designates this exam the Omani Examination for Internal Medicine (OEIM). It is an occupational classification examination conducted for internal medicine candidates seeking employment in healthcare institutions across Oman.

How many questions are on the OEIM, and what is the time limit?

The OEIM consists of 100 single-best-answer multiple-choice questions administered over 2 hours and 30 minutes, according to OMSB's August 2025 booklet.

What is the passing score and fee for the OEIM?

The passing score is 65% and the examination fee is USD 220 paid through Pearson VUE. Candidates receive results via email within 24 hours of completing the test.

Who is eligible to take the OEIM exam?

Eligibility criteria are classified as not published in the official booklet. Candidates must register through the OMSB Occupational Classification Testing Section before scheduling an appointment on Pearson VUE.

Where can candidates take the OEIM exam?

Candidates residing in Oman take the exam at the OMSB National Test Center located at Innovation Park Muscat. Candidates residing outside Oman can take it at authorized Pearson VUE test centres worldwide.

Is this practice question bank an official OMSB resource?

No. This question bank provides independent OpenExamPrep practice questions on the 12 topic areas published in the OMSB examination blueprint. For official curriculum guidelines and examination booking, visit omsb.gov.om and pearsonvue.com/omsb.