Dad has some health complications, the urine infection, has spread to his heart kidney, and other parts of the body, and is taking medicines. And secondly he is having prostrate problem, after he is free from urine infection, within a day or today, after observation, the doctor will start treatment for his prostrate problem, if the doctor thinks he need surgery, he will do the surgery or will give medicines, to cure the prostrate problem.
In addition to this the doctor is giving medicines, for his high BP, today its normal. And is having lot of problem, as a pipe is inserted to take out urine from his urinary bladder, and injections, and drip are given into his vein, you can say that he is in lot of pain, and if any little increase in BP or anxiety, or urine infection, or prostrate problem will make his health more critical. So you can pray that God be with him and heal him. 3-4 days seems to be very critical for him, and will remain in ICU.
I met him, and returned today, and i feel very sorrow in heart to see him suffering, and under treatment, which in itself gives a lot of pain.
You can keep praying for his quick recovery.
God bless your love and prayers