A patient was admitted to the critical care unit with acute respiratory failure The patient has ...

A patient was admitted to the critical care unit with acute respiratory failure
 
  The patient has been on a ventilator for 3 days and is being considered for weaning. The ventilator high-pressure alarm keeps going off. When you enter the room, the ventilator inoperative alarm sounds. What is the primary action the nurse would take?
 
  a. Troubleshoot the ventilator until the problem is found.
  b. Take the patient off the ventilator and manually ventilate her.
  c. Call the respiratory therapist for help.
  d. Silence the ventilator alarms until the problem is resolved.

Question 2

A patient is admitted to the critical care unit in congestive heart failure secondary to renal insufficiency.
 
  The patient reports that over the past few weeks, his urine output has decreased, and he has developed peripheral edema and ascites. A diagnosis of renal failure is made. The patient weight upon admission was 176 lb. The patient's weight the next day is 184 lb. What is the approximate amount of fluid retained with this weight gain?
 
  a. 800 mL
  b. 2200 mL
  c. 3600 mL
  d. 8000 mL

Question 3

Which of the following cardiac enzymes is a highly specific biomarker for myocardial damage?
 
  a. CK-MB
  b. Troponin I
  c. Troponin T
  d. LDH

Question 4

Which of the following assessment findings would indicate fluid volume excess?
 
  a. Venous filling of the hand veins greater than 5 seconds
  b. Distended neck veins in the supine position
  c. Presence of orthostatic hypotension
  d. Third heart sound