Hello,
Sorry for the delay in response and hope your husband is feeling better now.
These symptoms and signs are concerning and direct clinical examination is essential. Gastroenteritis and electrolyte imbalance seem to be the likely causes of his symptoms. Gastroenteritis is mostly due to viral infections although bacterial infections are not uncommon.
Fever in general causes acceleration of the heart rate but if it is out of proportion exclusion of cardiac affection is essential.
ECG and echocardiograph are of choice.
Metabolic disturbances due to
vomiting, diarrhoea, or inadequate intake or supplement for the loss would make him generally very weak, can not concentrate well and loses his muscle power. In addition dehydration may have a bad effect on his kidney . Electrolyte imbalance has an effect on the heart rate as well as the CNS. But proper neurologic examination is important.
Direct clinical examination is essential as well as thorough history to identify specific exposures that may give idea about of the possible source and the possible site of infection.
His doctor may recommend blood or stool culture based on the examination results. Other blood tests to check for electrolytes and
CBC are important too.
Broad spectrum
antibiotics may be initiated till the final results are out (even if he thinks it is viral, he may start so). Adequate fluid and electrolytes replacement are essential.
Hope you find this information useful.
Please keep us updated.
This answer does not substitute for direct medical consultation.
Dr. Safaa Mahmoud.
MB BCh, MSc Internal Medicine. MD Medical Oncology.
PhD Experimental Medicine and Biochemical Science.