Browse Medical Abbreviations

S son; sacral; mark; Sulfur (element)
s without
S-A sino-atrial
s.c. subcutaneous(ly)
s.o.s. if necessary
S/A sugar and acetone
S/E side effects
S/P status post (following); no change after
S/S signs and symptoms
S/Sx signs/symptoms
s/w somewhat
S1 first heart sound
S2 second heart sound
S3 third heart sound
S4 fourth heart sound
SA surface area; sinoatrial; status asthmaticus; sinus arrhythmia; salicylic acid; stomach ache; sexual assault
sa according to art (secundum artem)
SA node sinoatrial node
SAARD slow-acting antirheumatic drug(s)
SAB spontaneous abortion
SAC short arm cast
SAD seasonal affective disorder
SAE serious adverse event
SAH subarachnoid hemorrhage
SAID steroidal anti-inflammatory drugs
SALT speech and language therapy
SANE sexual assault nurse examiner
SaO2 arterial blood-oxygen saturation
SARS severe acute respiratory syndrome
SAS statistical analysis system; symptom assessment scale
SAT serum agglutination test
sat saturate, saturation
SAU standard IgA beta-2 glycoprotein unit
SAVE screen, ask, validate, evaluate/educate
SB spina bifida; small bowel; sinus bradycardia
Sb Antimony (stibium) (element)
SBAR situation, background, assessment, recommendation
SBE subacute bacterial endocarditis; self breast examination
SBFT small bowel follow-through (x-ray)
SBGM self blood glucose monitoring
SBO small bowel obstruction
SBP systolic blood pressure
sbp spontaneous bacterial peritonitis
SBS small bowel series; sick building syndrome
Sc Scandium (element)
SC subcutaneous; self care
sc subcutaneous(ly)
SCA sudden cardiac arrest; subclavian artery; sickle cell anemia
SCAD schizoaffective disorder; short-chain acyl-CoA dehydrogenase deficiency
SCAT sheep cell agglutination test
SCC squamous cell carcinoma; skilled care coordinator
ScD Doctor of Science
SCD sequential compression device; sudden cardiac death
SCFE slipped capital femoral epiphysis
SCI spinal cord injury
sci science
SCID severe combined immunodeficiency
SCJ sternoclavicular joint
SCLC small cell lung cancer
SCLE subacute cutaneous lupus erythematosus
ScM Master of Science
SCM sternocleidomastoid
SCN suprachiasmatic nucleus
SCr serum creatinine
SCT stem cell transplantation; sickle cell trait; salmon calcitonin
SD standard deviation
SDAT senile dementia of the Alzheimer type
SDH subdural hematoma
SDP single donor platelets
SDS sodium dodecyl sulfate; same day services
SDSU same-day surgery unit
SDT speech discrimination threshold (audiometry)
SE substantially equivalent; status epilepticus; side effects; standard error
Se Selenium (element)
sec second (time or sequence)
Sed rate sedimentation rate
seg segmented (white cells)
SEM scanning electron microscopy; systolic ejection murmur
SEMI subendocardial myocardial infarction
semih. half an hour
sens sensitivity; sensation
seq sequence
Ser serine
SERM selective estrogen receptor modulator
SF sugar free; serum ferritin; safety factor; synovial fluid
SFe Serum Iron
SFI Spondylitis Functional Index
SG Swan-Ganz catheter; specific gravity; skin graft; suicide gesture
SGA small for gestational age
SGOT serum glutamic oxaloacetic transaminase
SGPT serum glutamic-pyruvic transaminase
SGS subglottic stenosis
SGU standard IgG beta-2 glycoprotein unit
SH serum hepatitis; social history
sh shoulder
SHE safety, health and environment
shld shoulder
SHP hyperparathyroidism
SHU special housing unit
SHx social history
SI serious incident; sensory integration; suicidal ideation; International System of Units (Systeme International)
Si Silicon (element)
SI units International System of Units (Systeme International)
SIA strip immunoblot assay
SIADH syndrome of inappropriate antidiuretic hormone
SIB self-injurious behavior
sib sibling
SICU surgical intensive care unit
SIDS sudden infant death syndrome
SIE stroke in evolution
sig signal; label; signature
Sig. write on label (signa)
SIL squamous intraepithelial lesion
sim similar and simplated
SIMD substance-induced mood disorder
simul simultaneously
SIMV synchronized intermittent mandatory ventilation
SIP sterilization in place
SiPAP synchronized inspiratory positive airway pressure
SIRES stabilize, identify toxin, reverse effect, eliminate toxin, support
SIRI serious incident requiring investigation
SIRS systemic inflammatory response syndrome
SIS saline infusion sonohysterosalpingography
SIVP slow intravenous push
SIW self-inflicted wound
SJS Stevens-Johnson syndrome
SJT situational judgement test
SK streptokinase (thrombolytic)
skel skeletal
SL sensation level; sublingual (under tongue); saline lock
sl slight
SLB short leg brace
SLD specific learning disabilities
SLE systemic lupus erythematosus
SLP speech-language pathology
SLR straight leg raise
SLT speech and language therapy; selective laser trabeculoplasty
SM synovial membrane; streptomycin
sm small
Sm Samarium (element)
SMA sequential multiple analyzer; spinal muscular atrophy; superior mesenteric artery
SMAC sequential multiple analyzer computer
SMBG self-monitoring of blood glucose
SME significant medical event; subject matter expert
SMG submandibular gland
SMR submucous resection; standardized mortality ratio; sexual maturity rating
SMU standard IgM beta-2 glycoprotein unit
SMZ sulfamethoxazole
Sn Tin (element)
SNF skilled nursing facility
SNHL sensorineural hearing loss
SNOMED systematized nomenclature of medicine
SNP single nucleotide polymorphism
SNRI serotonin and norepinephrine reuptake inhibitor
snRNP small nuclear ribonucleoproteins
SNS supplemental nursing system; sympathetic nervous system
SO significant other; salpingo-oophorectomy; superior oblique
SO2 Sulfate
SOAP subjective, objective, assessment, plan
SOAPIER subjective, objective, assessment, plan, intervention, evaluation, response
SOB short(ness) of breath; side of bed
SOBE shortness of breath on exertion
SOBOE short of breath on exertion
SOC standard of care
SOD superoxide dismutase
SOI severity of illness
sol solution
SOL space occupying lesion
soln solution
SOM serous otitis media
SOMI sternal occipital mandibular immobilizer
sono sonogram
SONP soft organs not palpable
SOP standard operating procedure
SOS sinusoidal obstruction syndrome; help needed distress signal (save our ship)
SP suprapubic (catheter); Sanofi Pasteur
sp specific gravity; species; space
sp gr specific gravity
sp. Gr. specific gravity
SP/GP suicide precautions/general precautions
SPA sperm penetration assay; single point of access
SpA spondylarthropathy
SPAP systolic pulmonary artery pressure
SPC specialist palliative care; statistical process control
SPCA Society for the Prevention of Cruelty to Animals
spec specimen; specification
SPECT single-photon emission computed tomography
SPEP serum protein electrophoresis
SPF skin/sun protection factor; specific pathogen free
sph spherical
SPLATT split anterior tibial tendon transfer
SpO2 pulse oxygen saturation (pulse oximetry)
spon AB spontaneous abortion
spont spontaneous
spp species
SPP suprapubic prostatectomy
spt. spirit
sq squamous
SQ subcutaneous(ly)
SQV saquinavir (antiviral drug)
SR slow/sustained-release [medication]; sarcoplasmic reticulum; sinus rhythm
Sr Strontium (element)
SRD single rising dose
SRI serotonin reuptake inhibitor
sRNA soluble RNA
SRO single room occupancy
SROM spontaneous rupture of membranes
SRS slow-reacting substance
SRSA slow-reacting substance of anaphylaxis
SRT speech reception threshold on audiometry
SS Sjogren's syndrome
ss one half (semis); a half (semis)
SS# Social Security Number
SSA Social Security Administration
SSc systemic sclerosis
SSD somatic symptom disorder
SSDI Social Security disability insurance
ssDNA single-stranded DNA
SSE soap suds enema
SSEP somatosensory evoked potentials
SSI surgical site infection; supplemental security income; sliding scale insulin
SSKI saturated solution of potassium iodide
SSN Social Security Number
SSNHL sudden sensorineural hearing loss
SSO second surgical opinion
SSPE subacute sclerosing panencephalitis
SSRI selective serotonin reuptake inhibitor
SSS sick sinus syndrome
SSSS staphylococcal scalded skin syndrome
SSZ sulfasalazine
st straight; stage (disease); stomach
ST sinus tachycardia
st. let it/them stand
Staph staphylococcus
START simple triage and rapid treatment
STAT immediately, at once (statim)
stb stillborn
STD sexually transmitted disease
std standard
STEMI ST-segment elevation myocardial infarction
ster sterile
STG short-term goals; serum triglycerides
STH somatotrophic hormone (somatotropin)
STI sexually transmitted infection
stim stimulation
STJ scapulothoracic joint
STM short-term memory
Strep streptococcus
struct structure
STS serologic test for syphilis; sit to stand
STSG split thickness skin graft
STT short term tests
STU skin test unit
STV short term variability
subcu subcutaneous(ly)
subcut subcutaneous(ly)
subling sublingual (under tongue)
subQ subcutaneous
subst substance
SUD single-use device; substance use disorder; sudden unexpected death
SUDs single use devices
SUI stress urinary incontinence
SUID sudden unexpected infant death
sup superior
supf. superficial
supp suppository
supr superior, supervision
surg surgical
susp suspension
sut suture
SV stroke volume; supraventricular
Sv sievert (unit)
SVC superior vena cava
SVD spontaneous vaginal delivery
SVE sterile vaginal examination
SVR sustained virologic response; systemic vascular resistance
SVRI systemic vascular resistance index
SVT supraventricular tachycardia
SW social worker
SWD short wave diathermy
SWI surgical wound infection
Sx symptoms
SX P sexual precautions
sym symmetrical
symp symptoms; symptomatic
syn synthetic
sync synchronization
synth synthetic
syph syphilis
syr syringe; syrup
Sz seizure
Sz P seizure precautions