Which information obtained by the nurse is subjective when a patient experiences adverse effects of a medication?.

Choice A rationale: Edema is an objective symptom as it can be observed and measured by the nurse. Choice B rationale: Tachycardia is an objective symptom as it can be measured by the nurse. Choice C rationale: Nausea is a subjective symptom as it is reported by the patient. Choice D rationale: Cough is an objective symptom as it can be heard by the nurse.