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Table 1 Intradermal test for the drugs given during the anaphylactic event

From: Fentanyl-associated anaphylaxis in an infant with tetralogy of Fallot: a case report

Drug Undiluted concentration (mg/mL) Dilution Wheal diameter (mm) Erythema diameter (mm)
Control (saline)    0 0
25% albumin   1/10 0 0
Heparin   1/10 0 0
Rocuronium 10 1/100 0 0
Cefazolin   1 mg/mL 0 0
Fentanyl 0.05 1/10 0 11 × 6
Remifentanil   0.005 mg/mL 0 0
Ketamine 10 1/10 0 4 × 4
  1. SPT skin prick test, IDT intradermal test