| HPPD | hours per patient day |
|---|---|
| HRP | high-risk patient; high-risk pregnancy; histidine-rich protein; horseradish peroxidase |
| IMPATH | interactive microcomputer patient assessment tool for health |
| IMPS | Inpatient Multidimensional Psychiatric Scale; intact months of patient survival |
| IPCP | interdisciplinary patient care plan |