A Patient Has Prolonged PT and APTT

question 12

Multiple Choice

A patient has prolonged PT and APTT. Which of the following tests would not be warranted to follow up these findings?

• A) Factor XIII assay
• B) D-dimer
• C) Liver function tests
• D) Fibrinogen

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Definitions:

Dendrites

The branched extensions of a neuron that receive signals from other neurons or sensory stimuli and transmit them toward the cell body.

Axon

An extended, slim part of a nerve cell, also known as a neuron, that usually carries electrical currents away from the main cell body of the neuron.

Myelin

A fatty substance that surrounds and insulates the axons of some neurons, enhancing the speed and efficiency of electrical signal transmission.

Refractory Periods

Periods immediately following an action potential during which a neuron is unable to fire another action potential or the firing rate is significantly reduced.