Normal Caecum Size on Radiography and CT: <9 cm
The normal caecum measures less than 9 cm in anteroposterior diameter on radiography and CT; exceeding this threshold indicates clinically significant distension.
Gastrointestinal
20 entries
C
Normal Colon Diameter Size on Radiography and CT
Normal colonic diameter is less than 6 cm on radiography and CT; values above this threshold indicate significant dilation requiring prompt evaluation.
E
Erythromycin Pediatric Dose — Gastrointestinal Motility
Erythromycin pediatric dose for GI motility: 15–20 mg/kg/day PO divided every 6–8 hours. Key dosing, administration, and monitoring guidance for clinicians.
Esomeprazole Pediatric Dose — Gastrointestinal System
Review esomeprazole pediatric dose by weight band for IV/PO use, including dosing adjustments and a maximum of 80 mg divided BID.
Normal Esophageal Diameter in Children: Barium Swallow
Reference values for normal esophageal maximal diameter on barium swallow in pediatric patients, from neonates through adolescents aged 16 years.
Normal Esophageal Wall Thickness on CT: Key Reference
Normal esophageal wall thickness on CT is less than 5 mm; values exceeding this threshold warrant further evaluation for pathology.
F
Famotidine Pediatric Dose — Gastrointestinal (H2 Blocker)
Famotidine pediatric dose for IV acid suppression: 0.5 mg/kg/dose every 12 hours, with adult cap of 20 mg/dose; key clinical pearls included.
G
Normal Gastric Band Size on Fluoroscopy & Radiography
Learn the normal gastric band measurements on fluoroscopy and radiography, including the >5 mm threshold that signals clinically significant slippage or obstruction.
Normal Gastric Distension Size on Radiography
Learn the normal and abnormal thresholds for gastric distension on plain radiography, including clinical implications and measurement technique.
L
Lactulose Pediatric Dose — Constipation Treatment
Review the lactulose pediatric dose for constipation: 1–3 mL/kg/day divided every 8–12 hours, with a maximum of 60 mL/day.
M
Metoclopramide Pediatric Dose — Gastrointestinal
Metoclopramide pediatric dose is 0.1 mg/kg IV or PO every 6 hours, with a maximum of 10 mg per dose, for GI motility indications.
Normal Microcolon Size on Barium Enema: Key Reference
Normal microcolon diameter measures less than 1 cm on barium enema, a critical threshold for diagnosing neonatal bowel obstruction.
N
Normal Newborn Gastrointestinal Air Progression on Radiography
Normal newborn gastrointestinal air reaches the stomach by 2 hours, small bowel by 6 hours, and rectum by 24 hours on plain radiography.
O
Omeprazole Pediatric Dose — Gastrointestinal (GERD/Acid Suppression)
Omeprazole pediatric dose for acid suppression in children under 10 kg: 0.5–1 mg/kg/dose PO daily or every 12 hours per CHKD protocol.
Ondansetron Pediatric Dose — Antiemetic for Nausea & Vomiting
Ondansetron pediatric dose is 0.15 mg/kg IV or PO every 8 hours PRN, with a maximum single dose of 8 mg, for nausea and vomiting.
P
Normal Pancreas Diameter Size on Ultrasound
Reference guide to normal pancreas anteroposterior diameter on ultrasound across all age groups, from neonates to adults.
Normal Phi Angle Size on Fluoroscopy and Radiography
The normal phi angle measures 30–60° on fluoroscopy and radiography, a key landmark for assessing gastric band position after laparoscopic adjustable gastric banding.
Normal Pylorus Diameter & Thickness on Ultrasound
Normal pyloric muscle thickness is <3 mm and channel length <15 mm on ultrasound; values above these thresholds suggest hypertrophic pyloric stenosis.
R
Ranitidine Pediatric Dose — Gastrointestinal Indications
Review the ranitidine pediatric dose for GI indications: 4–10 mg/kg/day PO divided every 8–12 hours, with adult dosing reference and clinical guidance.
S
Normal Small Bowel Wall Thickness on CT and Ultrasound
Normal small bowel wall thickness is less than 3 mm on CT and ultrasound; exceeding this threshold suggests inflammation, ischemia, or neoplasm.
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