Check Your Understanding – VWD Laboratory Tests
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Why is diagnosing von Willebrand disease often more complicated than a single blood test?
a
Because blood tests are usually inaccurate.
b
Because doctors consider blood test results together with your bleeding history and sometimes repeat testing.
Doctors diagnose von Willebrand disease by combining blood test results, bleeding history, family history, and sometimes repeat testing. No single test is enough for many patients.
c
Because the diagnosis can only be made during surgery.
d
Because platelet counts alone determine the diagnosis.
Why might your doctor repeat von Willebrand disease blood tests?
a
Because the first test is usually incorrect.
b
Because von Willebrand factor levels can naturally change over time.
Von Willebrand factor levels can change with stress, illness, hormones, exercise, and age. Repeating the tests helps doctors identify the true pattern.
c
Because treatment always changes the results immediately.
d
Because everyone needs three blood tests before a diagnosis can be made.
Which statement best describes how doctors interpret von Willebrand disease blood tests?
a
Doctors look at the overall pattern of results together with your bleeding history.
Doctors look at the complete picture, including blood tests, bleeding history, family history, and sometimes repeat testing, before making a diagnosis.
b
The diagnosis is based on one abnormal result.
c
Blood test results are more important than symptoms.
d
Family history is the only information that matters.
What does it usually mean if your doctor orders additional laboratory tests after the first set of results?
a
The diagnosis is becoming more serious.
b
Your first blood tests were performed incorrectly.
c
Treatment cannot begin until every possible blood test has been completed.
d
Additional tests may help clarify the type of von Willebrand disease or explain unexpected results.
Additional testing is often part of a careful, stepwise evaluation. It helps doctors better understand how von Willebrand factor is functioning and whether a specific subtype is present.
Which statement about laboratory testing for von Willebrand disease is TRUE?
a
Blood tests alone always predict how much someone will bleed.
b
A normal result completely rules out von Willebrand disease.
c
Blood tests are important, but your personal bleeding history also helps guide diagnosis and treatment.
Blood tests are essential, but your bleeding history remains one of the most important parts of evaluation. Doctors use both laboratory results and clinical history to guide diagnosis and treatment.
d
Once testing is complete, it never needs to be repeated.
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