This topic contains a solution. Click here to go to the answer

Author Question: A female patient (59-kg IBW) with no history of pulmonary disease is being invasively ventilated ... (Read 144 times)

ts19998

  • Hero Member
  • *****
  • Posts: 531
A female patient (59-kg IBW) with no history of pulmonary disease is being invasively ventilated with VC-CMV, f = 12/min, VT = 470 mL, PEEP = 5 cm H2O, FIO2 = 0.5.
 
  ABG results with these settings are: pH 7.31, PaCO2 54 mm Hg, PaO2 92 mm Hg, SaO2 90, HCO3 24 mEq/L. The most appropriate action for the respiratory therapist to take is which of the following?
  a. Increase f to 16/min.
  b. Increase VT to 635 mL.
  c. Decrease VT to 400 mL.
  d. Decrease PEEP to 3 cm H2O.

Question 2

A male patient (76-kg IBW) with no history of pulmonary disease is brought to the emergency department for treatment of a drug overdose. He is intubated and placed on mechanical ventila-tion with VC-CMV, f = 12/min, VT = 450 mL.
 
  The resulting arterial blood gas values are: pH 7.32, PaCO2 53 mm Hg, and HCO3 25 mEq/L. The most appropriate action to correct the acid-base disturbance is which of the following?
  a. Increase VT to 595 mL.
  b. Increase VT to 760 mL.
  c. Increase frequency to 16/min.
  d. Decrease frequency to 10/min.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

meow1234

  • Sr. Member
  • ****
  • Posts: 333
Answer to Question 1

ANS: A
The target VT for an individual without pulmonary disease is 5-8 mL/kg IBW. This patient's VT range is 295-472 mL, meaning that the upper limit of this range has been reached. The f should be changed to increase this patient's minute ventilation.

Answer to Question 2

ANS: A
Desired VT Known PaCO2 Known VT / Desired PaCO2
The desired target for VT for this patient is 5-8 mL/kg IBW. Because the set VT of 450 mL is at 5.9 mL/kg, there is room to increase the VT. After calculating the desired VT using the formula, the new volume is at 7.8 mL/kg. A VT of 760 mL would be at 10 mL/kg IBW.




ts19998

  • Member
  • Posts: 531
Reply 2 on: Jul 16, 2018
Gracias!


bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

For a complete list of videos, visit our video library