The 18-year-old patient in sickle cell crisis has received multiple blood transfusions. During the shift assessment, the nurse notes the patient’s heart rate is 132 bpm, blood pressure is 102/58 mmHg, and the sclera are yellow. Which lab result would be surprising for this patient?  

The patient’s arterial blood gas and serum electrolyte results are as follows: pH 7.28, PCO2 = 32, PaO2 = 59, HCO3- = 16, SaO2 = 88%, Sodium = 149, Potassium 3.9, Chloride 112. Calculate this patient’s anion gap. Enter your answer using a whole number.

The 62-year-old patient presents to the emergency department complaining of chest pain. After a battery of tests and exams, the physician tells the nurse the patient's chest pain was likely due to coronary artery spasm. The nurse prepares education for the patient about which condition?