Which of the following factors describes the most common causes of digoxin toxicity?
a. Concurrent antihypertensive therapy and poor fluid intake
b. Loss of appetite and systemic infection
c. Increased edema and concurrent use of glucocorticoids
d. Improper dosing and concurrent diuretic use
ANS: D
There are two primary causes of digoxin toxicity: improper dosing, and hypokalemia secondary to the concurrent administration of diuretics. The most obvious cause of toxicity is the admin-istration of too large a dose of digoxin.
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A client is evaluated after suffering severe burns to the torso and upper extremities. The nurse notes edema at the burned areas. Which best describes the underlying cause for this manifestation?
A) Decreased osmotic pressure in the burned tissue B) Reduced vascular permeability at the site of the burned area C) Increased fluids in the extracellular compartment D) Inability of the damaged capillaries to maintain fluids in the cell walls
The nurse provides counseling to a patient who reports taking kava to treat anxiety-related symptoms. Which statement by the patient indicates understanding of the teaching?
a. "I may take kava with lorazepam (Ativan)." b. "I may develop a serious skin disorder while taking kava." c. "I should avoid alcohol while taking kava." d. "I should avoid St. John's wort and valerian while taking kava."
Compute the answers to the following questions based on this information
A critical care patient who weighs 80 kg has an order for 10 mcg/kg/min of dobutamine to be administered IV and regulated by an electronic pump. The supply of dobutamine is 500 mg in 250 mL of D5W. Compute the flow rate in mL/h. __________ mL/h Fill in the blank(s) with correct word