Which of the following is true of thrombopoietin?
a. Another name for erythropoietin
b. Promotes apoptosis of megakaryocytes
c. Binds to the ligand Mpl on the membrane of platelet precursors
d. Enhances platelet adhesion
ANS: C
Thrombopoietin binds to its ligand Mpl on the membrane of platelet precursors and plays a critical role in the production of platelets.
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Segmental pressure measurements may be superior to an ABI test to identify arterial insufficiency:
A. in patients with an ulcer proximal to the ankle. B. in patients with diabetes. C. in patients with concomitant venous insufficiency. D. in patients with toe ulcerations.
Which of the following paramedic actions is indicated after uncomplicated delivery of the newborn?
A) Performing fundal massage to maintain uterine contraction B) Placing the mother on oxygen by nonrebreather mask C) Applying gentle traction to the umbilical cord to assist with delivery of the placenta D) Administering oxytocin