A nurse on a medical unit is planning care for a group of clients. Which of the following clients should the nurse attend to first?

A A client who has multiple sclerosis and reports ataxia and vertigo C A client who has left-sided paralysis and slurred speech from a prior stroke D A client who has thrombocytopenia and reports a nosebleed B A client who has chronic obstructive pulmonary disease and an oxygen saturation of 89%