A client has been diagnosed with a ruptured ectopic pregnancy. Which of the following signs or symptoms is characteristic of this diagnosis?

Choice A rationale A ruptured ectopic pregnancy often causes significant intra-abdominal bleeding, leading to irritation of the diaphragm by the accumulated blood. This diaphragmatic irritation is often perceived by the patient as pain in the shoulder, typically the ipsilateral side, due to the shared phrenic nerve innervation (C3, C4, C5) that supplies both the diaphragm and sensory fibers to the shoulder region, a phenomenon known as referred pain. Choice B rationale Nausea and vomiting are common in early pregnancy and with an unruptured ectopic pregnancy due to hormonal changes, but severe nausea and vomiting (hyperemesis) is not the primary characteristic sign of a ruptured ectopic pregnancy. The more immediate and life-threatening symptom is often acute, severe abdominal pain and signs of hypovolemic shock from internal hemorrhage. Choice C rationale While some scant, irregular vaginal spotting or dark red/brown bleeding can occur with an ectopic pregnancy due to abnormal hormonal support of the decidua, heavy vaginal bleeding is less common than in a spontaneous miscarriage. The most critical bleeding in a ruptured ectopic pregnancy is internal (intra-abdominal), which can quickly lead to hypovolemia and shock. Choice D rationale Bradycardia (abnormally slow heart rate, normal range 60-100 beats per minute) is not characteristic of a ruptured ectopic pregnancy. The associated significant internal hemorrhage and subsequent hypovolemic shock usually trigger a compensatory physiological response leading to tachycardia (abnormally fast heart rate, >100 beats per minute) and hypotension as the body attempts to maintain cardiac output.