Conditions in which patient need for home mechanical ventilation is generally limited to daytime or nocturnal support include which of the following?
1. Kyphoscoliosis
2. High spinal cord injuries
3. Amyotrophic lateral sclerosis
4. Myasthenia gravis
a. 1 and 3 only
b. 1, 3, and 4 only
c. 2 and 4 only
d. 2, 3, and 4 only
ANS: B
Good candidates for home mechanical ventilation include (1) patients unable to maintain ade-quate ventilation over prolonged periods (noninvasive nocturnal or intermittent use in particular), (2) patients requiring continuous mechanical ventilation for long-term survival, and (3) patients who are terminally ill with short life expectancies. Table 56-5 provides more detailed profiles of these patient groups.
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