rises with muscle mass, so an adult range over-reads a child
Glucose
3.5–5.5 mmol/L (63–99 mg/dL)
newborn above 2.6 mmol/L
Urine sodium / chloride
under 20 mmol/L means the loss is not renal
a high urine chloride points to the kidney or a diuretic
Liver, bone and metabolic
Measure
Reference
Note
ALT / AST
10–40 / 10–45 U/L
GGT
5–35 U/L
up to 200 in the first months of life
Alkaline phosphatase
child 100–400 U/L, higher in the growth spurt
an adult range makes normal childhood bone turnover look like disease
Bilirubin (total)
under 17 µmol/L (1 mg/dL) beyond the newborn period
Conjugated bilirubin
under 17 µmol/L, or under 20 percent of total
above this is always pathological
Albumin
35–50 g/L
Ammonia
newborn under 110, child under 50 µmol/L
Calcium / magnesium / phosphate
2.2–2.7 / 0.7–1.0 / 1.2–2.0 mmol/L
phosphate runs higher in infancy, to about 2.6
Lipase or amylase
three times the upper limit defines pancreatitis
Sweat chloride
under 30 normal, 30–59 intermediate, 60 or more diagnostic
Cerebrospinal fluid
Measure
Newborn
Child
White cells
0–20 /mm3
0–5 /mm3
Protein
0.4–1.2 g/L
0.15–0.45 g/L
Glucose
at least 60 percent of the blood glucose
at least 60 percent of the blood glucose
Bacterial pattern
hundreds to thousands of neutrophils, high protein, low glucose
same
Case Complete
0 / 0
0%
Score: 0 / 0
Pediatric Case ReviewClinical Teaching Cases
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Gastroenteritis and Dehydration in Children in 18 board-style clinical cases with worked explanations. Each case gives you a clinical vignette, four options, the correct answer, and an explanation of why each of the other three is wrong, with the guideline or textbook it follows named on the answer.
Board-style teaching questions for paediatricians and trainees preparing for board, MRCPCH and Prometric examinations. Written from published guidelines and standard paediatric textbooks, with the source named on every answer.
