A newly absorbed amino acids enters which of the following vessels leading to the hepatic portal veins?
A) Superior mesenteric vein
B) Gastric veins
C) Inferior vena cava
D) Central vein
Answer: A
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The liver contains endocrine cells
Indicate whether this statement is true or false.
Sinusoids are modified vessels that replace ________ in some tissues.
A) veins B) arteries C) capillaries
Immediately following a dialysis treatment, a middle-aged woman complains of generalized weakness and nausea. Her blood pressure is 80/50 mm Hg, pulse rate is 40 beats/min and weak, and respirations are 22 breaths/min and regular. She is receiving supplemental oxygen, and an IV line has been established in the extremity opposite the shunt. The ECG reveals sinus bradycardia in lead II. Your next action should be to:
A) obtain a 12-lead ECG tracing. B) administer 0.5 mg of atropine sulfate. C) administer a 20-mL/kg fluid bolus. D) administer calcium and bicarbonate.
Platelets are cell fragments formed from:
A) lymphocytes. B) megakaryocytes. C) monoblasts. D) myeloblasts.