The Nurse Is Caring for a Patient in the Hospital

The nurse is caring for a patient in the hospital for pneumonia but also has a severe case of psoriasis that is being treated with methotrexate. During the morning assessments, which of the following lab values would alert the nurse that the patient may be experiencing a side effect to this medication? Select all that apply.

A) Serum potassium (K⁺) level 3.6 mmol/L
B) Platelet count 37 × 10³/µL
C) Alanine aminotransferase (ALT) 28 units/L
D) White blood cell count 1.2 × 10³/µL