All of the following are signs and symptoms of congestive heart failure EXCEPT:
A) hypertension. B) pedal edema.
C) difficulty breathing. D) headache.
D
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Thrombin activity impacts coagulation by which of the following mechanism(s)?
a. Altering blood flow b. Positive feedback only c. Negative feedback only d. Positive and negative feedback
A patient is stabilized on warfarin therapy and being monitored using the prothrombin time (PT) followed by calculation of the international normalized ratio (INR). The formula for calculating the INR is:
INR = (PTpatient/PTnormal)ISI (where ISI = international sensitivity index) What is used for the PTnormal? a. Arithmetic mean PT for the control b. Geometric mean PT for the reference population c. Arithmetic mean PT as found in a standard reference textbook d. Geometric mean PT reported by the manufacturer of the PT reagent being used