Harriet Lane Handbook
- Ulcer
- Ulipristal
- Ulnar gutter splint
- Umbilical arterial catheter (UAC), placement of
- Umbilical lines, placement of
- Umbilical venous catheter (UVC), placement of
- Uncomplicated chlamydial cervicitis, azithromycin for
- Under-nutrition
- Underpowered study
- Underweight
- Undifferentiated juvenile idiopathic arthritis
- Unfractionated heparin (UFH), for thrombosis
- Universal screening
- Unpaired tests
- Unstable hemoglobin
- Upper airway obstruction
- Upper motor neuron findings
- Urea cycle disorders
- Ureaplasma urealyticum
- Uremia, chronic kidney disease and
- Urethral infections
- Urgent neurology consultation
- Urinary bladder catheterization
- Urinary concentrating defect, chronic kidney disease and
- Urinary tract mycosis, bladder irrigation for
- Urinary tract obstruction, lower
- Urine anion gap (UAG)
- Urine culture
- Urine osmolality, evaluation of
- Urine output, assessment of
- Urine toxicology screens
- Urobilinogen
- Urolithiasis, imaging for
- Urologic disorders
- Ursodeoxycholic acid, for sinusoidal obstructive syndrome
- Urticaria, food allergy
- Urticarial reaction
- Ustekinumab, for pediatric rheumatology
- Uterine bleeding, abnormal
- Uterine compression
- U wave