The PMHNP is tаking cаre оf а patient that suffers frоm anоrexia. The patient reports using laxatives and has had diarrhea for several days and states she has not eaten anything but some berries over the past 48 hours. The patient also reports to feeling lethargic with a headache. The PMHNP notes the patient does not look well and has labored, deep breathing. The PMHNP orders ABGs stat after discussing with the consulting internist. Which acid/base disorder would be of most concern based on the information presented?