Table III.
Characteristics of patients with biphasic reactions
| Patient | Age (years) | Sex | Before / after Order set implementation | Allergen | Time of onset after resolution (hrs) | History of Asthma | Location of biphasic reaction onset | Biphasic Signs/Symptoms | Treatment of Biphasic Reaction | Disposition after biphasic reaction |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 49 | F | Before | Unknown | 10 | No | Outside | MC/R | H1 | Home |
| 2 | 40 | M | Before | Medication(lidocaine) | 4 | No | EDOU | MC/GI | H1 | GM |
| 3 | 29 | M | Before | Food (fish) | 1 | Yes | EDOU | MC/ R | Epi, H1, B | Home |
| 4 | 31 | M | Before | Unknown | 3 | No | EDOU | MC/R | Epi, H1 | Home |
| 5 | 45 | F | Before | Unknown | 12-16 | No | Home | MC/CV/R | Epi, S, H1, B | Home |
| 6 | 30 | F | After | Food (fibreshake) | 36 | No | Home | MC/R/GI | H2, S, B | EDOU->Home |
| 7 | 64 | F | After | Medication (bactrim) | 24-48 | Yes | Home | MC/R | Epi, S, H1, H2, B | EDOU->Home |
| 8 | 69 | F | After | Medication (aspirin) | 2 | Yes | EDOU | R/GI | Epi, H1, H2, S | EDOU->Home |
| 9 | 60 | F | After | Medication (clindamycin) | 3 | No | Home | MC/GI/R | H1, H2, S, B | EDOU->GM->ICU |
| 10 | 47 | F | After | Food (soy) | 3 | No | EDOU | MC/R/CV | Epi, H1, H2, S, V, I | ICU |
| 11 | 35 | M | After | Unknown | 24 | No | Home | MC/R | H1, H2, S, B | EDOU->Home |
EDOU-Emergency Department Observation Unit, MC- Mucocutaneous Signs/Symptoms, R- Respiratory Signs/Symptoms, GI- Gastrointestinal Signs/Symptoms, CV- Cardiovascular Signs/Symptoms, Epi-Epinephrine, I-Intubation, H1- H1antihistamines, H2-H2 antihistamines, S-Steroids, B-Bronchodilator, V-Vasopressor), ICU- intensive care unit, GM- general medical floor