Patient and infant laboratory test values before and after initiating testosterone
| INDIVIDUAL | BEFORE INITIATING TESTOSTERONE* | 3 WEEKS AFTER INITIATING TESTOSTERONE | 7 WEEKS AFTER INITIATING TESTOSTERONE |
|---|---|---|---|
| Parent | |||
| Free testosterone (0.002-0.03 nmol/L) | 0.006 | 0.016 | 0.012 |
| Total testosterone (<2 nmol/L) | 0.5 | 1.6 | 1.1 |
| SHBG (18-130 nmol/L) | 63 | 67 | 66 |
| Infant | |||
| Free testosterone (0.0021-0.0087 nmol/L) | Too low to measure | Too low to measure | Too low to measure |
| Total testosterone (<2 nmol/L) | <0.2 | <0.3 | <0.4 |
| SHBG (60-252 nmol/L) | 199 | 282 | 155 |
SHBG—sex hormone–binding globulin.
↵* All values measured in nmol/L.
Data from Forest et al7 and Alberta Precision Laboratories.8,9