What chemical release is responsible for signs/symptoms of an anaphylactic reaction?

A patient is experiencing diabetic ketoacidosis and their ventilatory rate is noted to be rapid and deep. The BEST explanation for the increased ventilatory rate is:

A teenager experienced a tonic-clonic seizure prior to your arrival. Upon arrival, the patient is found in a postictal state. While you are assessing the patient, they experience a second generalized seizure. The paramedic should suspect: 

The nasal pressure transducer detects airflow by measuring:

Transcutaneous CO2 sensors carry a risk of:

A ground loop occurs when ___.

Paramedics are unable to obtain IV access on a patient with a GCS of 14 (E4, V4, M6) and a blood sugar of 54. The paramedic should:

A 34-year-old is having an active grand mal seizure. Bystanders report they have been seizing continuously for 7 minutes. CBG is 78. After managing the airway, the paramedic should provide:

Paramedics are called to treat a patient with a suspected bowel obstruction. The patient is unresponsive, hypotensive, and is vomiting. Which of the following is the paramedics MOST important and immediate intervention?

Assuming the amount of bleeding is the same, which of the following patients with complaints of rectal bleeding should receive more aggressive monitoring and rapid transport?