5. Treatment for septic shock and volume depletion is IV fluids, normal saline.
6. Yes, it’s a good time to get a blood culture. However, his current antibiotic use decreases the chances something will grow out.
7. Tell the radiologist not to worry. Free air under the diaphragm suggests a perforated viscus. But it is an expected finding after abdominal surgery.
Remember, cultures after antibiotic tx is started are often negative, immune deficiency is associated with PEM and presentations can be misleading.