Which findings in a client with a deep vein thrombosis suggest that the client may now have a pulmonary embolism?

Choice A rationale Vomiting is a general symptom that may be associated with many conditions, but it is not a primary or characteristic sign directly suggesting that a deep vein thrombosis (DVT) has migrated to the lungs to become a pulmonary embolism (PE). PE symptoms are primarily focused on the cardiovascular and respiratory systems due to the blockage of blood flow. Choice B rationale Cyanosis, or a bluish discoloration of the skin and mucous membranes, suggests that the client may have a pulmonary embolism (PE). This finding indicates severe hypoxemia (low arterial oxygen levels) due to a ventilation-perfusion mismatch, where the lungs are ventilated but not perfused with blood, which is a classic physiological consequence of a large PE. Choice C rationale A rapid heart rate (tachycardia) is a highly indicative finding suggesting a possible pulmonary embolism. The body compensates for the decreased oxygenation and reduced cardiac output caused by the obstructed pulmonary circulation by increasing the heart rate to try and maintain adequate systemic blood pressure and oxygen delivery to vital organs. Choice D rationale Dyspnea, or sudden difficulty breathing, is the most common and classic symptom of a pulmonary embolism. The clot blocking the pulmonary artery causes an immediate mismatch between ventilation and perfusion, leading to an acute drop in arterial oxygen saturation, which stimulates the respiratory drive and results in acute shortness of breath. Choice E rationale Paradoxical chest movement is characteristic of flail chest, a condition where multiple ribs are fractured in two or more places, allowing a segment of the chest wall to move in during inspiration and out during expiration. This finding is a sign of severe chest trauma and has no direct association with the development of a pulmonary embolism. Choice F rationale Crackles (rales) in the lung fields are suggestive of a pulmonary embolism that has caused a pulmonary infarction (tissue death). This PE complication can lead to inflammation and exudate collection in the alveoli, resulting in the fine, discontinuous crackling sounds heard upon auscultation, often localized to the area of the infarction.