Primum Non Nocere and the 5 Rights.

Overutilization of hyperbaric oxygen therapy (HBOT) is commonplace and primarily associated with outpatient wound care. While the number of hospitals providing HBOT is at an all-time high, the number of those willing to treat patients in immediate need is at an all-time low. Huge areas of the country, including major population areas, are now completely devoid of 24/7 HBOT availability and inpatient access.

When childbirth causes reversed hemodialysis and renal failure.

A 26-year-old woman with no prior illness presented with progressive weakness, nausea and vomiting. Evaluation revealed acute renal failure and a large amount of ascites in her abdomen. A cystogram demonstrated leakage of contrast into the peritoneal cavity, confirming bladder injury.

Secondary malignant transformation of a primary mediastinal germ cell tumor with diffuse lymphangitic spread to the lungs.

A 27-year-old man with no history of cardiopulmonary disease presented with progressive shortness of breath. He was significantly tachypneic and hypoxic, with inspiratory and expiratory wheezing. Evaluation of the chest with computed tomography revealed a large anterior mediastinal mass and interstitial thickening consistent with lymphangitic spread.