| HNA | heparin neutralizing activity |
|---|---|
| HP | halogen phosphorus; handicapped person; haptoglobin; hard palate; Harvard pump; health profession(al... |
| HPF | heparin-precipitable fraction; hepatic plasma flow; high-pass filter; high-power field [microscope];... |
| LDH | lactate dehydrogenase; low-dose heparin |
| LDUH | low-dose unfractionated heparin |