A nurse is reviewing the medical record of a client who is requesting an oral contraceptive. Which of the following findings should the nurse identify as a contraindication to the use of oral contraceptives?

b. Migraines with aura. Explanation: Migraines with aura are considered a contraindication to the use of oral contraceptives. Auras are neurological symptoms that occur before or during migraines and can include visual disturbances, sensory changes, or speech difficulties. Women who experience migraines with aura have an increased risk of ischemic stroke when taking oral contraceptives. Therefore, it is important to identify this condition as a contraindication and explore alternative contraceptive options for the client. The other options (a. History of renal calculus, c. BMI of 25, d. History of cholecystectomy) are not contraindications to the use of oral contraceptives.