Emergency Medical Technician (EMT) Basic Certification Practice Exam 2025 – The Comprehensive All-in-One Guide to Exam Success!

In a severe pulmonary embolism, the obstruction of blood flow to the lungs can lead to impaired oxygenation of the blood. This can result in a condition known as cyanosis, where the skin and mucous membranes take on a bluish coloration due to decreased oxygen levels in the blood. Cyanosis is particularly noticeable in areas where the skin is thin, such as around the lips and fingertips, and is a critical sign for healthcare providers to recognize as it indicates inadequate oxygen delivery to tissues.

The other choices do not align with the typical physiological response seen in a severe pulmonary embolism. For example, flushed skin typically indicates increased blood flow and is often associated with conditions such as fever or inflammation. A yellowish tint may suggest issues related to liver function, such as jaundice, rather than a pulmonary issue. Dry skin is generally not a relevant indicator of pulmonary embolism; rather, it can result from various non-emergency medical conditions. Therefore, cyanosis is the most relevant skin condition associated with severe pulmonary embolism, making it the correct answer.