| IHSA | iodinated human serum albumin |
|---|---|
| IHSC | immunoreactive human skin collagenase |
| IHSS | idiopathic hypertrophic subaortic stenosis |
| IHSS(= HCMP) | Idiopathic Hypertrophic Subaortic Stenosis = Obstructive Idiopathic Hypertrophic Cardiomyopathy - CIx 1. Diuretics 2. Nitrates 3. β-Agonist(Stimulant) 4. Digitalis |
| IHT | insulin hypoglycemia test; intravenous histamine test; ipsilateral head turning |