Please choose the correct ending to complete the given sentence: Health: [header] How to treat obstructive shock [title] Examine for signs of a massive pulmonary embolism. [step] A massive pulmonary embolism (blood clot in the lungs) may be a cause of obstructive shock. It presents with sudden onset chest pain, shortness of breath, and the ensuing signs of shock.

Ending1: Watch for these symptoms and report them to your doctor. [substeps] Note: infants often experience shock for no other reason than the unforeseen witnessing of a pulmonary embolism. Ending2: A massive pe can be investigated for by getting a tee (transesophageal echocardiogram) or ct angio of the chest.. this is the fastest way to determine whether one is present and, if so, its exact location. Ending3: In addition, always watch for : [substeps] Difficulty breathing or jaw slack as though you'll faint or give up. This occurs as a red blood vessel suddenly appearing in the back of the mouth to indicate blood is leaking from the mouth and into the lungs. Ending4: In rare cases, the heart could fail to pump blood into the lungs and may suffocate, even if blood is pumped out. [substeps] A thick blood clot may form around the thyroid.

Answer format: ending1/ending2/ending3/ending4