| SN | sclerema neonatorum; scrub nurse; sensorineural; sensory neuron; serum neutralization; sinus node; spontaneous nystagmus; staff nurse; student nurse; subnormal; substantia nigra; supernatant; suprasternal notch |
|---|---|
| Sn | subnasale |
| SNA | specimen not available; Student Nurses Association |
| SNa | serum sodium concentration |
| SNagg | serum normal agglutinator |
| SNAP | sensory nerve action potential; S-nitroso-N-acetylpenicillamine |
| SNB | scalene node biopsy |
| SNC | spontaneous neonatal chylothorax |
| SNCL | sinus node cycle length |
| SNCS | sensory nerve conduction studies |