Hemoglobin drops 1 pr after every blood test. Ferritin high tibc iron normal tsat 12%. hem says no iron def? Pt ptt slightly prolonged. Further tests?

Follow MD advice. All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, do you have any symptoms? It is the patient who needs to be treated, not lab results.