What Could Cause Right Axis Deviation With An Incomplete Bundle Branch Block On My EKG, And Should I Be Concerned?

Posted on Tue, 12 May 2020

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Tue, 12 May 2020 Answered on

Fri, 21 Nov 2025 Last reviewed on

Question : I was recently in the emergency room and diagnosed with a right axis deviation and incomplete bundle branch block. What do you think is causing this on the EKG? Should I be worried?

Answered by Dr. Ilir Sharka (-4 hours later)

Brief Answer:
I would recommend performing some tests:

Detailed Answer:

Hello,

Welcome to 'Ask a Doctor' service!

I understand your concern and would explain that these ECG findings could be related to a lung disorder or a cardiac disease. I would like to know more about your complaints:

- Have you experienced shortness of breath?
- What is your past medical history?
- Have you had any lung disorders in the past?

Coming to this point, I would recommend performing a cardiac ultrasound, a chest X-ray study and pulmonary function tests. You should discuss with your doctor on the above tests!

I remain at your disposal for any further questions whenever you need!

Regards,
Dr. Ilir Sharka
Cardiologist

Above answer was peer-reviewed by : Dr. Vaishalee Punj

Follow up: Dr. Ilir Sharka (1 hour later)

I am short of breath after smoking most times and feel uneasy. I would also like to point out that when they did the ecg they ran blood work. my RDW SD level was low. I have no prior major medical problems. Can that be related to what is going on?

Answered by Dr. Ilir Sharka (4 hours later)

Brief Answer:
I would recommend as follows:

Detailed Answer:

Hello again,

The shortness of breath after smoking could be indicative of a lung disorder. For this reason, I would recommend performing a chest X ray study and pulmonary function tests. A cardiac ultrasound is also important to examine your heart function and structure.

Regarding RDW SD, I don't think that it is related to these ECG findings. It is indicative of anemia. For this reason, I recommend checking iron plasma levels.

Hope you will find this answer helpful! Wishing you all the best.

Regards,
Dr. Iliri

Above answer was peer-reviewed by : Dr. Yogesh D