Chronic Idiopathic Urticaria | Medical Algorithm

Are you evaluating a patient for chronic idiopathic urticaria?

Yes

Do you have controls in place to make sure that the patient is injected with his/her own serum?

Yes

Have intradermal injection sites been free of spontaneous urticaria during the past 24 hours?

Yes

Are the testing sites 3 to 5 cm away from each other?

Yes

Does the histamine control show wheal and flare response?

Yes

Is the site of serum injection red?

Yes

Maximum perpendicular diameter 1 for the serum site

Maximum perpendicular diameter 2 for the serum site

Maximum perpendicular diameter 1 for the normal saline site

Maximum perpendicular diameter 2 for the normal saline site

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Data complete?

Evaluation appropriate?

Number of problems identified

Average of the diameters for the serum injection site

Average of the diameters for the normal saline injection site

The average of the serum injection site diameters are

The autologous serum skin test is

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Interpretation and Description

References

Next Steps in Evaluation

Response To Therapy
- Daily Urticaria Activity Score (UAS)
- Urticaria Activity Score (UAS) to Measure Therapy Response

Evaluation

Results

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Monitoring

Specialty

Objective

ICD-10

Chronic Idiopathic Urticaria | Autologous Serum Skin Test (ASST)

Purpose: To determine a patient's response in the autologous serum skin test (ASST).

Evaluation

Results

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Monitoring

Specialty

Objective

ICD-10