Conversation: The conversation between human and AI assistant.
[|Human|] 70 year old male anerexic! chronic runner, intermittent dizziness, vertigo, Normalekg, normal blood work, normalecho cardiogram. dizziness occurs at rest only! Heart rate can fluctuate from a low of 37 bpm to 57 bpm. no sinus bradycardy. again poor nutrition !! could there be a possible connection between the Thyroid and possible metabolic dysfunction. and sub clinical electrolyte imbalance? additionally, the Pt. is always anxiety ridden
[|AI|]  Hello! Welcome and thank you for asking on Chat Doctor! I understand your concern and would explain that a thyroid dysfunction may be the cause of your symptoms. Nevertheless, a cardiac disorder can not be excluded. I recommend consulting with your GP for a careful physical examination and some tests: - resting ECG and cardiac ultrasound to examine your cardiac function and structure-chest X-ray study -blood lab tests (complete blood count, thyroid hormone levels, blood electrolytes, fasting glucose, vitamin B12 levels, kidney and liver function tests, fasting glucose, PCR, sedimentation rate). An ambulatory 24-48 hours ECG monitoring is necessary to examine your heart rate trends during the day. You should discuss with your attending physician on the above issues. Hope to have been helpful! Greetings!