Author Question: A patient has a body temperature of 40 C. How should the initial minute ventilation setting be ... (Read 68 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
A patient has a body temperature of 40 C. How should the initial minute ventilation setting be adjusted?
 
  a. Increase it by 15.
  b. Decrease it by 18.
  c. Decrease it by 25.
  d. Increase it by 30.

Question 2

A 65-year-old, 73-inch-tall, 195 lb male patient was admitted 2 days ago for renal failure. The patient has a history of chronic obstructive pulmonary disease (COPD) and has a pulse of 122 breaths/min, BP 153/88, and temperature 37 C.
 
  The patient is intubated for acute-on-chronic respiratory failure with hypoxemia. The physician requests volume-controlled continuous mandatory ventilation (VC-CMV). The initial settings for the ventilator should be which of the following?
  a. VT = 700 mL, rate = 12 breaths/min, PEEP = 3 cm H2O
  b. VT = 900 mL, rate = 10 breaths/min, PEEP = 5 cm H2O
  c. VT = 450 mL, rate = 20 breaths/min, PEEP = 8 cm H2O
  d. VT = 800 mL, rate = 15 breaths/min, PEEP = 10 cm H2O



chinwesucks

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

ANS: D
Minute ventilation (VE) would have to be increased by 10 for each degree above 37 C.

Answer to Question 2

ANS: A
First calculate ideal body weight (IBW) for a male, using the formula 106 + 6(ht  60). This pa-tient's IBW is 84 kg. Minute ventilation is about 100 mL/kg IBW, which would be 8.4 L/min. Since the patient has a history of chronic obstructive pulmonary disease (COPD), the tidal vol-ume should be set to between 8 and 10 mL/kg with rates of between 8 and 12 breaths/min. This would make the appropriate tidal volume range 672-840 mL. This eliminates the two choices where the volume is outside of this range, leaving choices A and D. Choice D can be eliminated because the rate of 15 is outside the suggested rates for COPD patients. Rapid rates will lead to air trapping in patients with high airway resistance.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

For a complete list of videos, visit our video library