I am 35 years old and I have been TRT for the last 8 months or so. I have to go back to the Dr in may for blood work before he will continue my TRT Rx. I am taking 200 mg Test Cyp every week right now so how long should I wait after my last injection before I get my bloodwork done so my natural levels would be at the lowest? I am trying to get him to up my dose to 250 mg per week.
No, dont go to 250. If anything lower dosage to less than 150 for 6 days then test. At 200 you could test high after one week and you end up geting your dosage cut down. There is very little need to run HRT at 250 a week because except some weird cases, test levels after a week at 250 may end up around 1000 which is at the tail end of the curve before another shot which will shoot your levels to 2000. Initially you will feel better at higher dosage but after a while it will go the other way once you body gets used to it and after few months gains will stop as well.
If you want to cycle it that's a different story, but you need to take supps and AI to mitigate the higher test levels. Cholesterol, high BP, and some other sides will start to creep up on you soon enough. It is normal to have 400 levels at the end of the week unless you start spliting to 2 shots a week.
I wouldnt stay on 250mg a week for ever but that's just me but I do occasionally cycle even higher dosages than that.
If you just want to test your levels at the lowest then do 100-125mg and test after 7 days. You may want to do private labs and see how your body reacts to the above dosage and time frame im suggesting before you go to the doctor.
If you 200mg and test after 7 days it will be closer to 800 from my experience but then again everyone is different .