A client is prescribed ethinyl estradiol and drospirenone (Yasmin) for to treat postmenopausal vasomotor symptoms. The nurse instructs the client to monitor for which of the following that may indicate a serious adverse complication?

A. Insomnia is not a serious adverse effect of ethinyl estradiol and drospirenone (Yasmin). Common side effects may include nausea or headaches, but insomnia is not a red flag. B. This could indicate deep vein thrombosis (DVT), a serious complication associated with hormonal contraceptives like Yasmin. The nurse should educate the patient to report these symptoms immediately. C. Sedation is not a common or serious adverse effect of Yasmin. Side effects are more commonly related to gastrointestinal or cardiovascular systems. D. Indigestion is not typically associated with a serious complication of Yasmin. Some mild gastrointestinal discomfort may occur, but it is not a major concern unless it is severe.