Drazen was in Bosnia during the civil war there. He has daytime flashbacks of the bombing and is emotionally numb, withdrawing from friends and family. Although he is much calmer than he was before the war, symptoms have lasted for several months. What about Drazen's case is unusual for a person with posttraumatic stress disorder (PTSD)?a. It is unusual for people with PTSD to have flashbacks.
b. It is unusual for people with PTSD to withdraw from others.
c. It is unusual for people with PTSD to become calm.
d. It is unusual for people with PTSD to have symptoms longer than thirty days.

A24-year-old g4p2 woman at 34 weeks gestation complains of a cough and whitish sputum for the last three days. she reports that everyone in the family has been sick. she reports a high fever last night up to 102°f (38.9°c). she denies chest pain. she has a history of asthma with no previous intubations. she uses an albuterol inhaler, although she has not used it this week. vital signs are: temperature 98.6°f (37°c); respiratory rate 16/minute; pulse 94 beats/minute; blood pressure 114/78; peak expiratory flow rate 430 l/min (baseline documented in the outpatient chart = 425 l/min). on physical examination, pharyngeal mucosa is erythematous and injected. lungs are clear to auscultation. white blood cell count 8,700 mcl; arterial blood gases on room air (normal ranges in parentheses): ph 7.44 (7.36–7.44); po2 103 mm hg (> 100); pco2 26 mm hg (28–32); hco3 19 mm hg (22–26). chest x-ray is normal. what is the correct interpretation of this arterial blood gas?