Which of the following patients would be considered hypoxemic? ...

[appyboo]

Which of the following patients would be considered hypoxemic?
 
  a. A 70-year-old man with a PaO2 of 72
  b. A 50-year-old woman with a PaO2 of 65
  c. An 84-year-old man with a PaO2 of 96
  d. A 68-year-old woman with a PaO2 of 80

Question 2

One therapeutic measure for treating hyperkalemia is the administration of dextrose and regular insulin. How do these agents lower potassium?
 
  a. They force potassium out of the cells and into the serum, lowering it on a cellular level.
  b. They promote higher excretion of potassium in the urine.
  c. They bind with resin in the bowel and are eliminated in the feces.
  d. They force potassium out of the serum and into the cells, thus causing potassium to lower.

[jonathanballen97]

Answer to Question 1

B
Normal PaO2 is 80 to 100 mm Hg in persons younger than 60 years. The formula for determining PaO2 for a person older than 60 years of age is 80 mm Hg minus 1 mm Hg for every year of age above 60 years of age, for example, 70 years old = 80 mm Hg  10 mm Hg = 70 mm Hg; 84 years old = 80 mm Hg  20 mm Hg = 60 mm Hg; and 68 years old = 80 mm Hg  8 mm Hg = 72 mm Hg.

Answer to Question 2

D
Acute hyperkalemia can be treated temporarily by intravenous administration of insulin and glucose. An infusion of 50 mL of 50 dextrose accompanied by 10 units of regular insulin forces potassium out of the serum and into the cells.

[appyboo]

Correct answers!

[jonathanballen97]

Great! Please up vote