FIG 5. Findings in a 14-year-old male adolescent; arb indicates arbitrary.

A, Initial spectrum (black) during DKA shows AcAc (peak at 2.22 ppm) and ßOHB. Spectrum from the phantom containing ßOHB is gray.

B, On the spectrum obtained after the patient’s recovery from DKA, AcAc and ßOHB are absent.

C, Difference spectrum between A and B.