SPECT single photon emission computed
tomography
SPF sun protection factor
SQ subcutaneous
SSRI selective serotonin reuptake inhibitor
STAT immediately (statim;Latin)
STD sexually transmitted disease
T 3 triiodothyronine
T 4 thyroxine
TBI traumatic brain injury
TCA trichloroacetic acid
TCM traditional Chinese medicine
TENS transcutaneous electrical nerve
stimulation
TGF transforming growth factor
TIA transient ischemic attack
TID/tid three times a day (ter in die;Latin)
TMLR transmyocardial laser
revascularization
TNF tumor necrosis factor
TPMT thiopurine methyltransferase
TRH thyrotropin-releasing hormone
TSE testicular self-examination
TSH thyroid-stimulating hormone
TTP thrombotic thrombocytopenic
purpura
UA urinalysis
URI upper respiratory infection
URR urea reduction ratio
USP United States Pharmacopeia
UTI urinary tract infection
UVA ultraviolet A
UVB ultraviolet B
VAD ventricular assist device
VALT vascular-associated lymphoid tissue
VBAC vaginal birth after cesarean
vCJD variant Creutzfeldt-Jakob disease
VIP vasoactive intestinal peptide
WBC white blood count
ZIFT zygote intrafallopian transferAbbreviations and Symbols 397