Cardiac glycosides' main mechanism of action is to block ATP inside the:

You are assessing a 76-year-old male patient that has been involved in a fall from a standing position. You have completed the scene size-up and primary assessment. What should you do next?

A) Reassessment B) Ongoing assessment C) Focused history assessment D) Secondary assessment

A 23-year-old patient is complaining of an acute onset of severe shortness of breath and sharp right sided chest pain after a cross country flight. The patient has no prior medical history. The patient smokes and is on birth control pills. VS: BP 126/90, P 124; ECG ST; RR 32 and labored, spo2 90%. Lung sounds are clear bilaterally, skin is pale, cool, and diaphoretic. What should a paramedic suspect?

A. Spontaneous pneumothorax B. Hyperventilation syndrome C. Pulmonary embolism D. Pleurisy