What muscle is primarily responsible for increasing thoracic cavity volume during inspiration?

Why are arteries structurally thicker and stronger than veins?

Which humidifier should be used on a patient using a nasal cannula at 6 LPM.

Which nebulizer should be recommended for patients with thick tenacious secretions due to having the highest output range of all nebulizers and the smallest particle size?

A patient with a head injury is being mechanically hyperventilated.  Although a heat moisture exchanger (artificial nose) is being used, the patient develops thick secretions, which are difficult to suction.  Which of the following should the respiratory care practitioner suggest?

Which of the following devices would you recommend to administer bland water aerosol to an infant or small child with a tracheostomy tube in place?

During a treatment with aerosolized Albuterol, the patient begins to complain of tingling fingers, dizziness and facial numbness. The respiratory therapist should do which of the following?

Which of the following devices would you recommend to administer bland water aerosol to an infant or small child with a tracheostomy tube in place?

A patient with chronic bronchiectasis has bilateral rhonchi and crackles when auscultated. What can help alleviated this?

Which of the following will respond to the varying levels of oxygenation?