Explanation/Reference:
Explanation:
(A) Red blood cell production is impaired in renal failure owing to impaired erythropoietin production. This causes a decrease in the delivery of oxygen to the tissue and impairs gas exchange. (B) The conversion of vitamin D to its physiologically active form is impaired in renal failure. (C) In renal failure, a decrease in red blood cell production occurs owing to an impaired production of erythropoietin, leading to impaired gas exchange at the cellular level. (D) The decreased production of renin in renal failure causes an increased production of aldosterone causing sodium and water retention.

Explanation
(A) Hyperacute T waves occur with hyperkalemia. (B) Prolongation of the P R interval occurs with first-degree AV block. (C) Horizontal ST-segment depression of>1 mm during exercise isdefinitely a positive criterion on the exercise ECG test. (D) Patho-logical Q waves occur with MI.

Section: Questions Set G
Explanation:
(A) The first signs of digoxin toxicity include abdominal pain, anorexia, nausea, vomiting, and visual disturbances. The physician should be notified if any of these symptoms are experienced. (B) The positive inotropic effects of digoxin increase cardiac output and result in an enhanced activity tolerance. "Feeling better" indicates the drug is working and medication therapy must be continued. (C) Clients should be taught to take their pulse prior to taking the digoxin. If their pulse rate becomes irregular, slows significantly, or is >100 bpm the physician should be notified. (D) Antacids decrease the effectiveness of digoxin.

(A) This answer is a miscalculation. (B) This answer is a miscalculation. (C) This answer has not been rounded off to an even number. (D) 20.8, or 21 gtt/min.

(A)
Because the eustachian tube is short and straight in the infant, formula that pools in the back of the throat attacks bacteria which can enter the middle ear and cause an infection.
(B)
Asthma is not associated with propping the bottle. (C) Conjunctivitis is an eye infection and not associated with propping the bottle. (D) Tonsillitis is usually a result of pharyngitis and not propping the bottle.