2–15% prevalence in developed nations
20–40% prevalence in developing nations
5% of all travelers’ diarrhea
Most common intestinal parasite in US:
Onset 1–2 wk postexposure
Infection may be asymptomatic (most common).
Diarrhea of acute onset (90% of symptomatic patients):
ABCs: Airway, breathing, circulation
IV 0.9% NS if signs of significant dehydration
For severe dehydration (>10%):
IV bolus with 0.9% NS at 20 mL/kg
Hypotension or tachycardia unresponsive to IV fluids
Severe electrolyte imbalance
Children with >10% dehydration
Signs of sepsis/toxicity (rare in isolated giard...
Include giardiasis in the differential diagnosis of all patients with diarrhea:
Giardia occasionally reported in domestic water ...
Escobedo AA, Almirall P, Alfonso M, et al. Treatment of intestinal protozoan infections in children. Arch Dis Child. 2009;94:478–482.
Escobedo AA, Alvarez G, González ME,...
58265007 Giardiasis (disorder)
Sign up for a 10-day FREE Trial now and receive full access to all content.