| A | B |
| Hgb, Hb | hemoglobin |
| gt, gtt, gtts | drop, drops |
| Gyn | gynecology |
| hct | hematocrit |
| hem | blood |
| HA | Hearing Aide, Headache |
| hemi | half |
| hetero | other, unlike, different |
| hist | tissue |
| hom | same, like |
| HOH | Hard of Hearing |
| hyper | excessive, high, over, increased |
| HS | hours of sleep |
| hyster | uterus |
| Hx, hx | history |
| I & O | Input & Output |
| hypo | decreased, deficient, low, under |
| ID | Intradermal, Infectious Disease |
|