What happens to the P(A-a) O2 with mismatch and shunt?

Which of the following provides clinicians with measured or calculated data related to ventilatory support over time?

An adult patient who weighs 62 kg (136 Lbs) requires a minute ventilation of 15L/min to maintain a PaCO2 of 36 while receiving mechanical ventilation. Which of the following could explain these ventilatory requirements? excessive caloric intakeincreased dead space ventilationfebrile patientincreased intrapulmonary shunt

What is the purpose of the tracheostomy tube obturator?

Which of the following modes of ventilatory support would you recommend for a hypoxemic patient with a diagnosis of congestive heart failure?

Which of the following information best helps to distinguish chronic hypercapneic respiratory failure from acute hypercapneic respiratory failure?

A sedated 152cm (5 ft) 42-kg (93 lbs) patient with pneumonia has been receiving VC-A/C ventilation for 3 days and has a worsening chest radiograph. The following information is available:FiO2 0.85frequency 24total rate 24Vt 400mLPEEP 14PIP 45Pplat 29pH 7.25PaCO2 62PaO2 68HCO3 27BE -2SaO2 94%A respiratory therapist should change the:

You will be performing tracheostomy care.  Which of the following equipment list is least needed to perform this procedure?

Your patient’s clinical status abruptly changes and the alarms on the ventilator are sounding. What is/are the first step(s) you should take?

An adult patient with a tracheostomy tube is receiving a heated aerosol with an FiO2 of 0.30 by T-piece. A respiratory therapist observes the T-piece often becomes disconnected from the tracheostomy tube. The therapist should: