Question: Dear Doc - This is with regards to my mother who is 70 years old - CKD , CABG , Diabetic . Last friday I got her admitted to hospital for pedal oedema and swelling on face etc . She was diagnosed with UTI and they gave her diuretic via IV plus antibiotic for the UTI . At this time , she was walking with support albeit with pain in her joints and lower back (lumbar canal stenosis) . She was discharged on 17th afternoon . On tuesday , her pain in the lower limbs was more and strength on a decline . She nearly sank while walking with support to the washroom , had similar 2-3 instance throughout and drowsiness . Wheeled her to emergency on this wednesday , wherein a neurosurgeon diagnosed this as OSA and adviced PSG plus BiPAP for her . She is still in the hospital and undergoing physio sessions for strength . My question was can OSA cause patients lower limb to go limp (flaps, flops) ? What is an appropriate way to flush out the CO2 narcosis from her body. Please do help me understand.

Dear Doc - Her PSG revealed mild OSA , for which BiPAP is already introduced , which has brought her CO2 to 51 as of yday . Since Saturday till today , she has been only sleeping in the hospital and disoriented (not coherent in her speech) . Today the doctors have repeated some more blood tests , which revealed slight elevation in ammonia , 2.9 Potassium levels and 2.08 as serum creatinine . They are planning an EEG now as they are unable to comprehend the reason for increased in sleep , lack of appetite and poor motor movements . Can you please help me understand as to what else can be done to accelerate the diagnosis ? I am at my wits end as the whole intention of admitting her in the hospital was pre-emptive routine checks . She was mobile until 17th,18th March and suddenly what has gone wrong due to which her mobility has reduced, sleepiness has increased . Please help ! Thanks.