Problem:
"Our patient is a woman of about 60 kg. She is 23 years old and has been suffering from hyperemesis (vomitting) and diarrhea, and is being seen in the emergency department for muscle weakness and blood in her urine. Following auscultation (listening with a stethoscope) Dr. George records that she has an irregular heartbeat. The physician administers 1L of an i.v. of normal saline/40mM KCl at 10mmoles/hour. Her initial blood chemistry revealed that her blood potassium levels were 2.5 mM. What is her expected blood potassium concentration in mM, following completion of the i.v? (Round your answer to the first decimal) numbers ONLY DO NOT INCLUDE mM in your answer. "