Is a PET required for chronic watery diarrhea for past 60 days damaging the kidneys
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chronic diarrhea dehydration acute kidney injury when seek emergency care adults official guidance
A PET scan is not usually required to assess chronic watery diarrhea or whether it is affecting the kidneys. PET is mainly used for selected cancer, inflammatory, or infection evaluations after initial testing suggests a reason for it.
However, 60 days of watery diarrhea needs prompt medical assessment, because persistent fluid loss can cause dehydration, electrolyte disturbances, and reduced kidney blood flow leading to acute kidney injury. Chronic diarrhea should be assessed for dehydration, electrolyte abnormalities, and kidney function. NCBI clinical review
Ask a clinician for evaluation today or within 24-48 hours, including:
- Blood tests: creatinine/eGFR, urea, sodium, potassium, bicarbonate, magnesium, CBC
- Urinalysis and blood pressure assessment
- Stool testing based on history, including infections such as Giardia or C. difficile when relevant
- Review of medicines and supplements
- Further tests such as celiac testing, colonoscopy, or abdominal imaging if indicated. These are more typical next steps than PET.
Go to urgent care or the ER now if there is very little or no urine, fainting, confusion, severe weakness, inability to keep fluids down, severe abdominal pain, black or bloody stool, fever, rapid heartbeat, or marked dizziness on standing.
Until assessed, use an oral rehydration solution in frequent small amounts if you can drink. Avoid NSAIDs such as ibuprofen or naproxen while dehydrated, as they can further stress the kidneys. Do not stop prescription medicines without advice.
If by “PET” you meant a test other than a PET scan, tell me its full name.
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