Hemophilia A Differential Diagnoses

  • Author: Robert A Zaiden, MD; Chief Editor: Steven C Dronen, MD, FAAEM   more...
 
Updated: Nov 15, 2011
 
 

Diagnostic Considerations

Problems to be considered include vitamin K and other factor deficiencies. Other congenital bleeding disorders must be excluded. These may include the following:

  • von Willebrand disease (autosomal dominant transmission)
  • Platelet disorders (eg, Glanzmann thrombasthenia)
  • Deficiency of other coagulation factors (ie, FV, FVII, FX, FXI, or fibrinogen)

Differentiating between severe hemophilia A and hemophilia B is almost clinically impossible, but specific laboratory factor assays can help with the distinction. Conditions that can increase FVIII levels (eg, age, ABO blood type, stress, exercise) can obscure the diagnosis of hemophilia A.

Please see the following for more information:

Differential Diagnoses

Proceed to Workup
 
 
Contributor Information and Disclosures
Author

Robert A Zaiden, MD  Assistant Professor, Department of Hematology and Medical Oncology, University of Florida at Jacksonville College of Medicine

Robert A Zaiden, MD is a member of the following medical societies: American College of Physicians and American Society of Clinical Oncology

Disclosure: Nothing to disclose.

Coauthor(s)

Lawrence F Jardine, MD, FRCPC  Associate Professor, Department of Pediatrics, Schulich School of Medicine and Dentistry, University of Western Ontario; Head, Section of Pediatric Hematology and Oncology, Children's Hospital of Western Ontario; Associate Scientist, Child Health Research Institute

Lawrence F Jardine, MD, FRCPC is a member of the following medical societies: American Society of Hematology, American Society of Pediatric Hematology/Oncology, Canadian Medical Protective Association, Children's Oncology Group, College of Physicians and Surgeons of Ontario, Hemophilia and Thrombosis Research Society, Ontario Medical Association, and Royal College of Physicians and Surgeons of Canada

Disclosure: Baxter Honoraria Consulting; Bayer Honoraria Consulting; Novartis Honoraria Speaking and teaching

Adonis Lorenzana, MD  Consulting Staff, Department of Pediatric Oncology, St John Hospital and Medical Center

Adonis Lorenzana, MD is a member of the following medical societies: American Academy of Pediatrics and American Society of Pediatric Hematology/Oncology

Disclosure: Nothing to disclose.

Emmanuel C Besa, MD  Professor, Department of Medicine, Division of Hematologic Malignancies, Kimmel Cancer Center, Jefferson Medical College of Thomas Jefferson University

Emmanuel C Besa, MD is a member of the following medical societies: American Association for Cancer Education, American College of Clinical Pharmacology, American Federation for Medical Research, American Society of Clinical Oncology, American Society of Hematology, and New York Academy of Sciences

Disclosure: Nothing to disclose.

Gary D Crouch, MD  Associate Professor, Program Director of Pediatric Hematology-Oncology Fellowship, Department of Pediatrics, Uniformed Services University of the Health Sciences

Gary D Crouch, MD is a member of the following medical societies: American Academy of Pediatrics and American Society of Hematology

Disclosure: Nothing to disclose.

Hadi Sawaf, MD  Director, Pediatric Hematology Oncology, Van Elslander Cancer Center; Clinical Assistant Professor, Wayne State University School of Medicine

Hadi Sawaf, MD is a member of the following medical societies: American Academy of Pediatrics, American Society of Clinical Oncology, and American Society of Hematology

Disclosure: Nothing to disclose.

Karen Seiter, MD  Professor, Department of Internal Medicine, Division of Oncology/Hematology, New York Medical College

Karen Seiter, MD is a member of the following medical societies: American Association for Cancer Research, American College of Physicians, and American Society of Hematology

Disclosure: Novartis Honoraria Speaking and teaching; Novartis Consulting fee Speaking and teaching; Eisai Honoraria Speaking and teaching; Celgene Honoraria Speaking and teaching

Ronald A Sacher, MB, BCh, MD, FRCPC  Professor, Internal Medicine and Pathology, Director, Hoxworth Blood Center, University of Cincinnati Academic Health Center

Ronald A Sacher, MB, BCh, MD, FRCPC is a member of the following medical societies: American Association for the Advancement of Science, American Association of Blood Banks, American Clinical and Climatological Association, American Society for Clinical Pathology, American Society of Hematology, College of American Pathologists, International Society of Blood Transfusion, International Society on Thrombosis and Haemostasis, and Royal College of Physicians and Surgeons of Canada

Disclosure: Glaxo Smith Kline Honoraria Speaking and teaching; Talecris Honoraria Board membership

Saduman Ozturk, PA-C  Physician Assistant, Bone Marrow Transplant Center, Florida Hospital Cancer Institute

Disclosure: Nothing to disclose.

Mary A Furlong, MD  Associate Professor and Program/Residency Director, Department of Pathology, Georgetown University School of Medicine

Mary A Furlong, MD is a member of the following medical societies: United States and Canadian Academy of Pathology

Disclosure: Nothing to disclose.

Specialty Editor Board

William G Gossman, MD  Associate Clinical Professor of Emergency Medicine, Creighton University School of Medicine; Consulting Staff, Department of Emergency Medicine, Creighton University Medical Center

William G Gossman, MD is a member of the following medical societies: American Academy of Emergency Medicine

Disclosure: Nothing to disclose.

Francisco Talavera, PharmD, PhD  Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Medscape Salary Employment

Jeffrey L Arnold, MD, FACEP  Chairman, Department of Emergency Medicine, Santa Clara Valley Medical Center

Jeffrey L Arnold, MD, FACEP is a member of the following medical societies: American Academy of Emergency Medicine and American College of Physicians

Disclosure: Nothing to disclose.

Max J Coppes, MD, PhD, MBA  Senior Vice President, Center for Cancer and Blood Disorders, Children's National Medical Center; Professor of Medicine, Oncology, and Pediatrics, Georgetown University School of Medicine; Clinical Professor of Pediatrics, George Washington University School of Medicine and Health Sciences

Max J Coppes, MD, PhD, MBA is a member of the following medical societies: American Association for Cancer Research, American Society of Pediatric Hematology/Oncology, and Society for Pediatric Research

Disclosure: Nothing to disclose.

Chief Editor

Steven C Dronen, MD, FAAEM  Chair, Department of Emergency Medicine, LeConte Medical Center

Steven C Dronen, MD, FAAEM is a member of the following medical societies: American Academy of Emergency Medicine and Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Additional Contributors

The authors and editors of Medscape Reference gratefully acknowledge the contributions of previous authors Brendan R Furlong, MD, and Dimitrios P Agaliotis, MD, PhD, FACP,to the development and writing of the source articles.

References

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Coagulation system.
Table 1. Severity, Factor Activity, and Hemorrhage Type
Classification Factor Activity, % Cause of Hemorrhage
Mild>5-40Major trauma or surgery
Moderate1-5Mild-to-moderate trauma
Severe< 1Spontaneous, hemarthrosis
Table 2. General Guidelines for Factor Replacement for the Treatment of Bleeding in Hemophilia
Indication or Site of Bleeding Factor level Desired, % FVIII Dose, IU/kg*Comment
Severe epistaxis; mouth, lip, tongue, or dental work20-5010-25Consider aminocaproic acid (Amicar), 1-2 d
Joint (hip or groin)4020Repeat transfusion in 24-48 h
Soft tissue or muscle20-4010-20No therapy if site small and not enlarging (transfuse if enlarging)
Muscle (calf and forearm)30-4015-20None
Muscle deep (thigh, hip, iliopsoas)40-6020-30Transfuse, repeat at 24 h, then as needed
Neck or throat50-8025-40None
Hematuria4020Transfuse to 40% then rest and hydration
Laceration4020Transfuse until wound healed
GI or retroperitoneal bleeding60-8030-40None
Head trauma (no evidence of CNS bleeding)5025None
Head trauma (probable or definite CNS bleeding, eg, headache, vomiting, neurologic signs)10050Maintain peak and trough factor levels at 100% and 50% for 14 d if CNS bleeding documented†
Trauma with bleeding, surgery†80-1005010-14 d
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