Author Question: How long does a tracheostomy site typically take to mature? a. 2-4 days b. 4-6 days c. 7-12 ... (Read 66 times)

CharlieWard · **on:** Jul 16, 2018

How long does a tracheostomy site typically take to mature?

a. 2-4 days
b. 4-6 days
c. 7-12 days
d. 10-15 days

Question 2

Sixty minutes after a patient is extubated, an arterial blood gas sample is drawn; the results are: pH = 7.20, PaCO2 = 60 mm Hg, PaO2 = 55 mm Hg, SaO2 = 80, HCO3 = 23 mEq/L with a 2 L/min nasal cannula.

The patient is SOB and complaining of chest pain. His blood pressure is 92/50 mm Hg. The most likely cause of this weaning failure is which of the following?
a. Chronic obstructive pulmonary disease
b. Acute left ventricular failure
c. Ventilatory muscle weakness
d. Hypophosphatemia

rosiehomeworddo · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: C
A tracheostomy site typically requires 7-10 days to mature.

Answer to Question 2

ANS: B
Patients who do well for 30-60 minutes after extubation and then fail weaning because of acute respiratory acidosis, hypoxemia, hypotension, and chest pain are likely to have acute left ventric-ular failure. This occurs because of increased preload, which is due to the decreased pulmonary capillary compression that occurs when intrathoracic pressure is reduced as a result of being off the ventilator.