A patient has a parenteral nutrition infusion of 25 dextrose. A ...

[tsand2]

A patient has a parenteral nutrition infusion of 25 dextrose. A student nurse asks the nurse why a peripherally inserted central catheter was inserted. Which response by the nurse is most appropriate?
 
  a. There is a decreased risk for infection when 25 dextrose is infused through a central line.
  b. The prescribed infusion can be given much more rapidly when the patient has a central line.
  c. The 25 dextrose is hypertonic and will be more rapidly diluted when given through a central line.
  d. The required blood glucose monitoring is more accurate when samples are obtained from a central line.

Question 2

A nurse in the outpatient clinic is caring for a patient who has a magnesium level of 1.3 mg/dL. Which assessment would be most important for the nurse to make?
 
  a. Daily alcohol intake
  b. Intake of dietary protein
  c. Multivitamin/mineral use
  d. Use of over-the-counter (OTC) laxatives

[batool]

Answer to Question 1

ANS: C
The 25 dextrose solution is hypertonic. Shrinkage of red blood cells can occur when solutions with dextrose concentrations greater than 10 are administered IV. Blood glucose testing is not more accurate when samples are obtained from a central line. The infection risk is higher with a central catheter than with peripheral IV lines. Hypertonic or concentrated IV solutions are not given rapidly.

Answer to Question 2

ANS: A
Hypomagnesemia is associated with alcoholism. Protein intake would not have a significant effect on magnesium level. OTC laxatives (such as milk of magnesia) and use of multivitamin/mineral supplements would tend to increase magnesium levels.

[tsand2]

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[Liamb2179]

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