Which of the following are true about NO2?
1. NO2 levels greater than 10 ppm can cause hemorrhage, pulmonary edema, and death.
2. NO2 is produced spontaneously whenever NO is exposed to O2.
3. The Occupational Safety and Health Administration (OSHA) safety limit for NO2 exposure is 5 ppm.
4. NO2 exposure should be kept below 5 ppm during NO administration.
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
Question 2
What is the recommended maximum initial dose of inhaled NO in neonates with respiratory dis-tress syndrome?
a. 5 ppm
b. 10 ppm
c. 20 ppm
d. 30 ppm