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Acute disseminated intravascular coagulation is characterized by:
A patient develops unexpected bleeding and the test results shown in this table are obtained:
test |
result |
PT and aPTT |
prolonged |
fibrinogen |
decreased |
D-dimer |
increased |
platelets |
decreased |
What is the most probable cause of these results?
A patient presents with the results shown in this table:
test |
result |
reference range |
thrombin time |
48 seconds |
12-21 seconds |
reptilase time |
38 seconds |
14-22 seconds |
These results are characteristic of:
Only an abnormal aPTT would be seen in the following disorder:
What is usually the factor VIIl level in a hemophiliac patient with spontaneous bleeding?
What is the most common presentation of factor XIII deficiency?
A patient is diagnosed with amyloidosis, they will be deficient in which of the following factors?
Which of the following tests are the most beneficial tool to aid in the diagnosis of DIC?
Results of a factor X assay are shown in this table:
dilution |
result |
1:10 |
50% |
1:20 |
77% |
1:40 |
127% |
These results indicate the presence of:
A patient that has a lupus anticoagulant may bleed due to:
Patients with factor XIII deficiency have:
In hemolytic disease of the newborn, babies present with:
Occasional spontaneous bleeding may occur in a hemophiliac who is classified as:
In liver disease patients present with decreased synthesis of:
Alloantibodies are found in:
When there is a disparity between the results of the fibrinogen antigen and the activity, the most likely diagnosis is:
Bleeding doesn’t correlate well with factor levels in a deficiency of:
A newborn baby boy is known to have a homozygous protein C deficiency. This puts him at a risk for:
Protein S forms a reversible complex with:
A 48-year-old male is screened pre-operatively. He has a positive family history for bleeding.
The patient is of Ashkenazi Jewish descent. His results are as follows:
test |
result |
reference range |
PT |
11.5 seconds |
10.5-13.5 seconds |
aPTT |
45.1 seconds |
25-35 seconds |
1:1 mixing study |
patient=28.1 seconds |
pooled normal plasma = 29 seconds |
Based on this history and the results of these tests, this patient’s most likely diagnosis is a deficiency in factor: