### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
My father in law was taken to the ER 10 days ago when his PM went off six times one evening. No enzymes were found and it was determined to be a false alarm, however his creatnine level was 3.4 and the ER transferred him inpatient, sighting possible kidney failure. Three days after constant hydration , he was discharged with a level of 3.1. Three days later when visiting his PCP, level was back to 3.4. He has been suffering from lethargy, nausea, generalized low mood/fatigue for a few weeks now. PCP has no advice other than to see a nephrologist , and the first appt available is in 2 weeks. He suffered from numerous strokes which lead to brain bleeds 6 years ago, and has near total left side impairment. He is about 5 10 , weight probably close to 300. Has been on several medication for HBP for about 15-20 years. Also take warfarin . Unfortunately no info on BUN or GFR. I m curious if this warrants attention sooner than 2 weeks from now when a specialist can see him (IE fast tracking through a different ER to see a specialist sooner).

### output:

Your father is definitely having CKD, chronic kidney disease, most likely due to long-standing hypertension. A creatinine level of 3.4 however is not very alarming, and you can wait till four appointment with the nephrologist. Try to keep his blood pressure under control, less than 140/90, by regular medicines, don't let him get deny Chat Doctor. Once the nephrologist sees him follow his advice to reduce or control disease progression.