Hi,
Noted the history about a 79 year old male developing weakness,
low grade fever unable to be diagnosed for 2 months, nausea, and now weakness with numbness all limbs, PCP think of Neurologist;s opinion.
The commonest causes of low grade fever and other symptoms in an elderly can be one of the following:
Urinary tract infection is common in old age due to stasis of urine due to
enlarged prostate.
Anything related to heart, endocarditis or so.
Lung or liver infection.
Since you have mentioned only the blood tests I would advise the patient the following:
Blood tests including culture and sensitivity.
Urine: routine, microscopy, culture and sensitivity.
Ultrasonography of abdomen and pelvis.
X-ray of chest.
Further investigations depending upon the reports of above tests and clinical evaluation, examination.
Clinical trail with an antibiotic,
metronidazole should help in such patients and should be carried out.
Once a proper diagnosis has been made it is possible to have proper management including that of neurological manifestations.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, General Surgeon