Recommendations for a Reliable Blood Test Lab in Karachi?

Can anyone suggest any reliable blood test lab in karachi. The most important values to me are accuracy of results and time-consciousness as well as cleanliness and organisation of the premises. Do you have any personal use of one of these labs and could you say you had a positive experience? Also, it would be icing on the cake if they provided sample collection from the comfort of your own home. members present your recommendation or experience to support me when choosing the best tomato variety. Thanks!