DHA Exam Cardiology MCQs: Practice Questions With Explanations
Sample DHA licensing exam MCQs from Cardiology — the largest specialty area in HighYield's DHA bank without a dedicated practice post — covering ECG findings, heart sounds, and ischemic heart disease, each with the correct answer explained.
Cardiology is the largest specialty area in HighYield's DHA question bank after Family Medicine, and it's a heavily tested domain on the actual DHA licensing exam for Pakistani doctors applying for a Dubai medical licence. Below is a sample set of Cardiology MCQs in the same clinical-vignette style you'll see on exam day, grouped by theme.
Heart Sounds & Physical Signs
1. The first heart sound (S1) corresponds to closure of which valves?
- A) Aortic and pulmonary valves
- B) Mitral and tricuspid valves ✅
- C) Aortic and mitral valves
- D) Pulmonary and tricuspid valves
2. Beck's triad — hypotension, distended neck veins, and muffled heart sounds — is classically associated with:
- A) Aortic dissection
- B) Cardiac tamponade ✅
- C) Acute pulmonary embolism
- D) Constrictive pericarditis
ECG & Arrhythmias
3. Cannon "a" waves on jugular venous pressure examination are most classically seen in:
- A) Atrial fibrillation
- B) Complete heart block ✅
- C) Sinus tachycardia
- D) First-degree AV block
4. A patient on digoxin who develops a new arrhythmia and reports yellow-green visual disturbances most likely has:
- A) Beta-blocker toxicity
- B) Digoxin toxicity ✅
- C) Calcium channel blocker toxicity
- D) Amiodarone toxicity
Ischemic Heart Disease
5. The first-line pharmacological class for symptom relief in chronic stable angina is:
- A) Beta-blockers ✅
- B) Loop diuretics
- C) ACE inhibitors alone
- D) Antiplatelets alone
6. Subacute bacterial endocarditis on a native, previously damaged heart valve is most commonly caused by:
- A) Staphylococcus aureus
- B) Streptococcus viridans ✅
- C) Enterococcus faecalis
- D) Candida albicans
Why Cardiology Deserves Dedicated Revision
Family Medicine may be the single largest topic in HighYield's DHA bank, but Cardiology is the largest specialty-specific area — and it's tested in enough depth that treating it as a subset of general medicine revision leaves real gaps on exam day.
HighYield's DHA question bank covers Cardiology alongside Family Medicine, Neurology, Endocrinology and every other discipline tested in the DHA licensing exam, with every question explained. For the full picture of what the DHA exam covers, see our DHA Exam Guide. Start with 50 free questions, no sign-in required.