Score of Warkentin and Heddle for the Diagnosis of Heparin-Induced Thrombocytopenia (HIT)

Purpose: To evaluate a patient for heparin-induced thrombocytopenia (HIT) using the diagnostic score of Warkentin and Heddle.

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Evaluation

Are you evaluating a patient who is being treated with heparin?

Yes

Has the patient had a recent exposure to heparin prior to the current therapy?

Yes

Number of days after starting heparin therapy that minimum platelet count reached

Platelet count before exposure to heparin

Minimum platelet count after exposure to heparin

Has the patient had an acute systemic reaction after the heparin infusion?

Yes

Select an appropriate answer for each finding

Thrombosis

Skin findings

Another explanation for thrombocytopenia

Results

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Results Interpretation and Description References Next Steps

Data complete?

Evaluation appropriate?

Percent drop in platelet count

Total score

The chances that the patient has HIT are

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Interpretation and Description

References

Next Steps in Evaluation

Diagnosis

Severity, Prognosis, Stage
- Score of Pouplard et al for Estimating the Likelihood of Heparin-Induced Thrombocytopenia
Complications
- Score of Pouplard et al for Estimating the Likelihood of Heparin-Induced Thrombocytopenia

Monitoring

Adverse Effects
- Score of Pouplard et al for Estimating the Likelihood of Heparin-Induced Thrombocytopenia
Complication Detection
- Score of Pouplard et al for Estimating the Likelihood of Heparin-Induced Thrombocytopenia

Specialty

Hematology Oncology
Clinical Laboratory
Pharmacology, clinical
Critical Care
Immunology/Rheumatology

Objective

clinical diagnosis
including family history for genetics
laboratory tests
criteria for diagnosis
differential diagnosis and mimics
red flags

ICD-10

D69 - Purpura and other haemorrhagic conditions

Info

Purpose: To evaluate a patient for heparin-induced thrombocytopenia (HIT) using the diagnostic score of Warkentin and Heddle.

Specialty: Hematology Oncology, Clinical Laboratory, Pharmacology, clinical, Critical Care, Immunology/Rheumatology

Objective: clinical diagnosis, including family history for genetics, laboratory tests, criteria for diagnosis, differential diagnosis and mimics, red flags

ICD-10: D69,

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