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Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
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robin121 robin121
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6 years ago
The nurse is caring for a child with hemophilia and is reviewing the results that were sent from the laboratory. The nurse would expect to note which of the following results in this child?
 
  1. Shortened prothrombin time (PT)
  2. Prolonged prothrombin time (PT)
  3. Shortened partial thromboplastin time (PTT)
  4. Prolonged partial thromboplastin time (PTT)
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#1
6 years ago
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Rationale: PTT measures the activity of thromboplastin, which is dependent on intrinsic factors. In hemophilia, the intrinsic clotting factor VIII (antihemophilic factor) is deficient, resulting in a prolonged PTT. Shortened prothrombin time (PT), prolonged prothrombin time (PT), and shortened partial thromboplastin time (PTT) are incorrect. The PT may not necessarily be af-fected in this disorder.
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