A patient has been hospitalized for a subtotal gastrectomy ...

[casperchen82]

A patient has been hospitalized for a subtotal gastrectomy
 
  After the procedure, an infection developed that eventually had to be treated with gentamicin, an aminoglycoside antibiotic. After 3 days of administration, oliguria occurred, and subsequent laboratory values indicated elevated BUN and creatinine levels. The patient is transferred to the critical care unit with acute kidney injury (previously known as acute tubular necrosis). The fluid that is removed each hour is not called urine; it is known as
 
  a. convection.
  b. diffusion.
  c. replacement fluid.
  d. ultrafiltrate.

Question 2

A patient has been on complete bed rest for 3 days
 
  The health care provider has ordered for the patient to sit at the bedside for meals. The patient complains of feeling dizzy and faint while sitting at the bedside. The nurse anticipates that the patient is experiencing
 
  a. orthostatic hypertension.
  b. orthostatic hypotension.
  c. hypervolemia.
  d. electrolyte imbalance.

[pratush dev]

Answer to Question 1

D
The fluid that is removed each hour is not called urine; it is known as ultrafiltrate. Typically, some of the ultrafiltrate is replaced through the continuous renal replacement therapy circuit by a sterile replacement fluid. Diffusion is the movement of solutes along a concentration gradient from a high concentration to a low concentration across a semipermeable membrane. Convection occurs when a pressure gradient is set up so that the water is pushed or pumped across the dialysis filter and carries the solutes from the bloodstream with it.

Answer to Question 2

B
Orthostatic hypotension produces subjective feelings of weakness, dizziness, or faintness. Orthostatic hypotension occurs with hypovolemia or prolonged bed rest or as a side effect of medications that affect blood volume or blood pressure.

[casperchen82]

TYSM

[Kedrick2014]

Excellent