How does viscosity of blood in a system affect resistance?

In the cardiac muscle contraction-relaxation pathway, how is Ca2+ returned to the intracellular/extracellular environments after contraction?

One theory of depression is that the monoamine serotonin does not stay in the synaptic cleft long enough for receptor binding to occur. Which of these therapeutic approaches would increase synaptic serotonin activity?

Hypernatremia is defined as a high concentration of Na+ in the blood. A patient on a low-sodium diet is diagnosed with hypernatremia, so the physician prescribes a diuretic that prevents Na+ reabsorption in the distal tubule. Is this the correct approach? If so, why?

The client with a pulmonary embolus has been prescribed a heparin bolus of 80 units/kg IV. The client weighs 187lbs. How many units will the nurse administer per dose? (Numerical Answer Only) (Round to the nearest whole number)

Which of these statements best describes the function of trophic hormones?

The diagram below shows the autonomic and somatic nervous systems. Systems 1-3 represent a unique autonomic system pathway. NT 1 refers to the location where the first neurotransmitter/receptor combo is found. NT 2 refers to the location where the second neurotransmitter/receptor combo is found. In all three pathways, this Neurotransmitter is released at NT 1

Which of these is the correct sequence of events for trypsin and chymotrypsin activation?

What physiological effects does vasopressin exert on the kidneys? (DCT=Distal convoluted tubule; CD=collecting duct)

A nurse is reinforcing teaching with a client who takes phenytoin and has a new prescriptionfor sucralfate tablets. Which of the following instructions should the nurse include?