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Protein S - Risks

What the risks are:

  • Excessive bleeding
  • Fainting or feeling light-headed
  • Blood collecting under the skin (hematoma)
  • Infection
  • Many needle sticks to find veins

Special considerations:

Some drugs that stop clots from forming (anticoagulants), such as warfarin (Coumadin) can decrease protein C and protein S levels. Health care providers may find it difficult to read protein C or S measurements in patients taking anticoagulants.

Clot events such as a clot in the lung (pulmonary embolism) reduce protein C and S levels, and their measurements may be misleading until the clot is treated.

Veins and arteries vary in size from one patient to another and from one side of the body to the other. Getting a blood sample from some people may be harder than from others.

  • Reviewed last on: 3/22/2007
  • Carl T. Henningson, Jr. M.D., Private Practice specializing in Hematology and Oncology, Manasquan, NJ. Review provided by VeriMed Healthcare Network.

References

Büller HR, Agnelli G, Hull RD, Hyers TM, Prins MH, Raskob GE. The Seventh ACCP Conference on Antithrombotic and Thrombolytic Therapy: Evidence-Based Guidelines. Chest. September 2004;126(suppl):401S-428S.

Soliman DE, Broadman LM. Coagulation defects.Anesthesiol Clin North America. September 2006;24:549-578.

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