The evaluation of right bundle branch block starts with a history and physical examination.
There are no physical findings in someone with right bundle branch block. The diagnosis of right bundle branch block is made by examining the electrical pattern on an electrocardiogram or heart monitor.
Tests that may be used to evaluate right bundle branch block include:
- Kidney profile
- Chest x-ray
- Drug screen
- Cardiac monitoring
- Cardiac enzymes if a heart attack is suspected
- Exercise stress test
- 24-hour cardiac monitor: a portable ECG that measures the heart's rate and rhythm over a 24-hour period (or longer)
Less commonly performed tests that may be used to evaluate right bundle branch block include:
Continue to RBBB Treatment
- Gonzalez MD. Right bundle-branch block unmasking a myocardial infarction. Clin Cardiol. 2002 May;25(5):245-6. 
- Iacovino JR. Mortality analysis of complete right and left bundle branch block in a selected community population. J Insur Med. 1997;29(2):91-100. 
- Sarubbi B, Li W, Somerville J. QRS width in right bundle branch block. Accuracy and reproducibility of manual measurement. Int J Cardiol. 2000 Aug;75(1):71-4.