A 66-year-old male patient with amyloidosis was admitted to the hospital with severe gastrointestinal bleeding. Admission laboratory data includes: Hgb 10 g/dL Hct 0.32 Platelet count: Adequate PT 45 sec APTT 95 sec Fibrinogen 400mg/dL Thrombin Time 5 sec PT 1:1 mix 13 sec APTT 1:1 mix 30 sec (4-12 sec) Rusell’s Viper venom time 55 sec (14-20 sec) What test result indicates factor deficiency and not the presence of circulating anticoagulant?
A 66-year-old male patient with amyloidosis was admitted to the hospital with severe gastrointestinal bleeding. Admission laboratory data includes: Hgb 10 g/dL Hct 0.32 Platelet count: Adequate PT 45 sec APTT 95 sec Fibrinogen 400mg/dL Thrombin Time 5 sec PT 1:1 mix 13 sec APTT 1:1 mix 30 sec (4-12 sec) Rusell’s Viper venom time 55 sec (14-20 sec) What test result indicates factor deficiency and not the presence of circulating anticoagulant?
Chapter8: Have A Heart
Section: Chapter Questions
Problem 1M
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A 66-year-old male patient with amyloidosis was admitted to the hospital with severe gastrointestinal bleeding. Admission laboratory data includes:
Hgb 10 g/dL Hct 0.32 Platelet count: Adequate PT 45 sec APTT 95 sec Fibrinogen 400mg/dL |
|
Thrombin Time 5 sec PT 1:1 mix 13 sec APTT 1:1 mix 30 sec |
(4-12 sec) |
Rusell’s Viper venom time |
55 sec (14-20 sec) |
- What test result indicates factor deficiency and not the presence of circulating anticoagulant?
- If adsorbed plasma were used in the mixing studies what would be the expected result?
- Why both PT and APTT test are prolonged?
- What additional test should be done that would help in the diagnosis?
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