Page 769 - First Aid for the USMLE Step 1 2020, Thirtieth edition [MedicalBooksVN.com]_Neat

AbbreviAtions And symbols AbbreviAtions And symbols seCtion iv 725

ABBREVIATION MEANING ABBREVIATION MEANING
R correlation coefficient, right, R variable [group] SLT Shiga-like toxin
R Registration, Ranking, & Results [system] SMA superior mesenteric artery
3
RA right atrium SMX sulfamethoxazole
RAAS renin-angiotensin-aldosterone system SNARE soluble NSF attachment protein receptor
RANK-L receptor activator of nuclear factor-κ B ligand SNc substantia nigra pars compacta
RAS reticular activating system SNP single nucleotide polymorphism
RBF renal blood flow SNr substantia nigra pars reticulata
RCA right coronary artery SNRI serotonin and norepinephrine receptor inhibitor
REM rapid eye movement snRNA small nuclear RNA
RER rough endoplasmic reticulum snRNP small nuclear ribonucleoprotein
Rh rhesus antigen SO superior oblique [muscle]
RLL* right lower lobe (of lungs) SOAP Supplemental Offer and Acceptance Program
RLQ right lower quadrant Sp* spleen
RML* right middle lobe (of lung) spp species
RNA ribonucleic acid SR superior rectus [muscle]
RNP ribonucleoprotein SS single stranded
ROS reactive oxygen species ssDNA single-stranded deoxyribonucleic acid
RPF renal plasma flow SSPE subacute sclerosing panencephalitis
RPGN rapidly progressive glomerulonephritis SSRI selective serotonin reuptake inhibitor
RPR rapid plasma reagin ssRNA single-stranded ribonucleic acid
RR relative risk, respiratory rate St* stomach
rRNA ribosomal ribonucleic acid ST Shiga toxin
RS Reed-Sternberg [cells] StAR steroidogenic acute regulatory protein
RSC* right subclavian artery STEMI ST-segment elevation myocardial infarction
RSV respiratory syncytial virus STI sexually transmitted infection
RTA renal tubular acidosis STN subthalamic nucleus
RUL* right upper lobe (of lung) SV splenic vein, stroke volume
RUQ right upper quadrant SVC superior vena cava
RV residual volume, right ventricle, right ventricular SVR systemic vascular resistance
SVT
supraventricular tachycardia
RVH right ventricular hypertrophy T* trachea
[S] substrate concentration t half-life
SA sinoatrial T 1/2 triiodothyronine
SAA serum amyloid–associated [protein] T 3 thyroxine
4
SAM S-adenosylmethionine TAPVR total anomalous pulmonary venous return
SARS severe acute respiratory syndrome TB tuberculosis
SCC squamous cell carcinoma TBG thyroxine-binding globulin
SCD sudden cardiac death TBV total blood volume
SCID severe combined immunodeficiency disease 3TC dideoxythiacytidine [lamivudine]
SCJ squamocolumnar junction TCA tricarboxylic acid [cycle], tricyclic antidepressant
SCM sternocleidomastoid muscle Tc cell cytotoxic T cell
SCN suprachiasmatic nucleus TCR T-cell receptor
SD standard deviation TDF tenofovir disoproxil fumarate
SE standard error [of the mean] TdT terminal deoxynucleotidyl transferase
SEP Spoken English Proficiency TE tracheoesophageal
SER smooth endoplasmic reticulum TFT thyroid function test
SERM selective estrogen receptor modulator TG triglyceride
SGLT sodium-glucose transporter TGF transforming growth factor
SHBG sex hormone–binding globulin Th cell helper T cell
SIADH syndrome of inappropriate [secretion of] antidiuretic THF tetrahydrofolic acid
hormone TI therapeutic index
SIDS sudden infant death syndrome TIA transient ischemic attack
SJS Stevens-Johnson syndrome Tib* tibia
SLE systemic lupus erythematosus TIBC total iron-binding capacity
SLL small lymphocytic lymphoma TIPS transjugular intrahepatic portosystemic shunt
*Image abbreviation only

FAS1_2019_19_Appendix_Abbrev-Sym.indd 725 11/8/19 6:54 AM