Browse Medical Abbreviations

S sulfur [element]; son; sacral; mark
s without
S-A sino-atrial
s.o.s. if necessary (L. si opus sit)
S/A sugar and acetone
S/E side effects
S/P status post (condition following [event])
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 sinoatrial; surface area; salicylic acid; status asthmaticus; sinus arrhythmia; stomach ache; sexual assault
sa according to art (secundum artem)
SA node sinoatrial node
SAA serum amyloid A
SAARD slow-acting antirheumatic drug
SAB spontaneous abortion
SAC short arm cast
SAD seasonal affective disorder
SADS sudden arrhythmic death syndrome
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
SAPS Simplified Acute Physiology Score
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 stillbirth; spontaneous breathing; serum bilirubin; 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 sick building syndrome; small bowel series
SBT spontaneous breathing trial
Sc scandium [element]
SC subcutaneous(ly); self care
sc subcutaneous(ly)
SCA superior cerebellar artery; 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
SCE sister chromatid exchange
SCFE slipped capital femoral epiphysis
SCI spinal cord injury
sci science
SCID severe combined immunodeficiency
SCJ sternoclavicular joint
Scl-70 Sclero 70
SCLC small cell lung cancer
SCLE subacute cutaneous lupus erythematosus
SCM sternocleidomastoid
ScM Master of Science
SCN suprachiasmatic nucleus
SCr serum creatinine
SCT salmon calcitonin; sickle cell trait; stem cell transplantation
SD standard deviation
SDAT senile dementia of the Alzheimer type
SDB sleep disordered breathing
SDH subdural hematoma; succinate dehydrogenase
SDP single donor platelets
SDS Sheehan Disability Scale; same day services; sodium dodecyl sulfate
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
SEDC spondyloepiphyseal dysplasia congenita
SEER Surveillance, Epidemiology, and End Results
seg segmented (white cells)
SEGA subependymal giant cell astrocytoma
SEM scanning electron microscopy; systolic ejection murmur; standard error of the mean
SEMI subendocardial myocardial infarction
sens sensation; sensitivity
SEP sclerosing encapsulating peritonitis
seq sequence
Ser serine
SERM selective estrogen receptor modulator
SF sugar-free; serum ferritin; safety factor; synovial fluid
SF-1 steroidogenic factor 1
SFe Serum Iron
SFI Spondylitis Functional Index
SG Swan-Ganz catheter; specific gravity; skin graft; suicide gesture
SGA small for gestational age; subjective global assessment
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
SHBG sex hormone binding globulin
SHE safety, health and environment
shld shoulder
SHP hyperparathyroidism
SHPT secondary 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 joint sacroiliac joint
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; let it be labeled (L. signetur); signature
SIJ sacroiliac joint
SIL squamous intraepithelial lesion
sim similar and simplated
SIMD substance-induced mood disorder
simul simultaneously
SIMV synchronized intermittent mandatory ventilation
SIP sterilization in place; Sickness Impact Profile
SiPAP synchronized inspiratory positive airway pressure
SIRES stabilize, identify toxin, reverse effect, eliminate toxin, support
SIRI serious incident requiring investigation
siRNA small interfering RNA
SIRS systemic inflammatory response syndrome
SIS saline infusion sonohysterosalpingography
SIVP slow intravenous push
SIW self-inflicted wound
SJS Schwartz-Jampel syndrome; Stevens-Johnson syndrome
SJT situational judgement test
SK streptokinase (thrombolytic)
skel skeletal
SL sensation level; saline lock; sublingual (under tongue)
sl slight
SLAM Systemic Lupus Activity Measure
SLB short leg brace
SLCC Systemic Lupus Criteria Count
SLD specific learning disabilities
SLE systemic lupus erythematosus
SLED sustained low efficiency dialysis
SLEDAI Systemic Lupus Erythematosus Disease Activity Index
SLICC Systemic Lupus International Collaborating Clinics
SLP speech-language pathology
SLR straight leg raise
SLT selective laser trabeculoplasty; speech and language therapy
Sm samarium [element]
sm small
SM streptomycin; synovial membrane
SMA superior mesenteric artery; spinal muscular atrophy; sequential multiple analyzer
SMAC sequential multiple analyzer computer
SMBG self-monitoring of blood glucose
SME significant medical event; subject matter expert
SMG submandibular gland
SMR sexual maturity rating; standardized mortality ratio; submucous resection
SMS Smith-Magenis syndrome
SMU standard IgM beta-2 glycoprotein unit
SMV Superior mesenteric vein
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 sympathetic nervous system; supplemental nursing system
SNV single nucleotide variant
SO superior oblique; salpingo-oophorectomy; significant other
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
SOFA Sequential Organ Failure Assessment
SOI severity of illness
SOL space occupying lesion
sol solution
soln solution
SOM serous otitis media
SOMI sternal occipital mandibular immobilizer
sono sonogram
SONP soft organs not palpable
SOP standard operating procedure
SOS help needed distress signal (save our ship); sinusoidal obstruction syndrome; spondyloocular syndrome
SOT solid organ transplant
SP suprapubic (catheter); Sanofi Pasteur
sp specific gravity; species; space
sp. gr. specific gravity
SP/GP suicide precautions/general precautions
SpA spondylarthritis; spondylarthropathy
SPA sperm penetration assay; single point of access
SPAP systolic pulmonary artery pressure
SPB systolic blood pressure
SPC specialist palliative care; statistical process control
SPCA Society for the Prevention of Cruelty to Animals
spec specification; specimen
SPECT single-photon emission computed tomography
SPEP serum protein electrophoresis
SPF specific pathogen free; sun protection factor
sph spherical
SPLATT split anterior tibial tendon transfer
SPN solitary pulmonary nodule
SpO2 pulse oxygen saturation (pulse oximetry)
spon AB spontaneous abortion
spont spontaneous
SPP suprapubic prostatectomy
spp species
spt. spirit
SQ subcutaneous(ly)
sq squamous
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 sliding scale (insulin); one half (L. semis)
SS# Social Security Number
SSA Social Security Administration
SSc systemic sclerosis
SSC standard saline citrate; saline sodium citrate
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 (L. statim)
std standard
STD sexually transmitted disease
STEMI ST-segment elevation myocardial infarction
ster sterile
STG serum triglycerides; short-term goals
STH somatotrophic hormone (somatotropin)
STI sexually transmitted infection
stim stimulation
STJ scapulothoracic joint
STM short-term memory; science, technology, and medicine
STR short tandem repeat
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 sudden unexpected death; substance use disorder; single-use device
SUDEP sudden unexplained death in epilepsy
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
SUV standardized uptake value
SV stroke volume; supraventricular
Sv sievert (unit)
SVC superior vena cava; slow vital capacity
SVCO superior vena cava obstruction
SVD spontaneous vaginal delivery
SVE sterile vaginal examination
SVG saphenous vein graft
SVR sustained virologic response; systemic vascular resistance
SVRI systemic vascular resistance index
SVT supraventricular tachycardia
SVV stroke volume variation
SW social worker
SWD short wave diathermy
SWI surgical wound infection
Sx symptoms
SX P sexual precautions
SXR skull x-ray
sym symmetrical
symp symptoms; symptomatic
syn synthetic
sync synchronization
synth synthetic
syph syphilis
syr syringe; syrup
Sz seizure
Sz P seizure precautions