Which of the following is true of pulse oximetry? 1. An emitter puts out a wavelength of light specific to deoxygenated hemoglobin which is detected by a sensor 2. An emitter puts out a wavelength of light specific to oxygenated hemoglobin which is detected by a sensor 3.  Variance in light is used to detect volume changes which is displayed as a pulse 4. The pressure of oxygen (PO2) is measured, and then displayed as a percentage

A normal capnogram contains the most CO2 during which phase?

Which of the following conditions should be maintained when delivering medical gases to the nose and mouth?

The set rate was increased to 15 breaths/min.   Four hours later the patient’s nurse calls to tell you that the ventilator is alarming. You enter the room and the low pressure and low volume alarms are triggering. What should be assessed at this time?   Select as MANY as indicated

The physician agreed on placing her on nasal cannula at 2 lpm. Her SpO2 improved to 90%. What else would you like to assess at this time?   Select as MANY as appropriate

The patient was unresponsive and not breathing. Cardiopulmonary resuscitation was started. You assisted the physician to intubate the patient with a  7.5 ETT  at 26 cm marking at the teeth. What should be assessed just after intubation to assess the placement of the airway?   Select as MANY as appropriate

Clinical Simulation 3   You are a respiratory therapist starting your shift in the ICU. Your first patient is a 5’8″ 65 y/o male patient intubated on CMV due to respiratory failure secondary to COPD exacerbation. Current ventilator settings are AC rate of 12, VT 550 ml, +5 cm H2O PEEP and 60% FIO2. What  ventilator parameters should you assess at this time?   Select as MANY as indicated

After placing the patient on an air-entrainment mask of 0.50 FIO2, the patient’s respiratory rate has decreased to 24 breaths/min with a SpO2 of 96%.  Previous Assessments: HR 120 bpm, Respiration 35 breaths/min, BP 130/85 mmHg, SpO2 85% Lung sounds: Rhonchi and wheezes in the RUL and RML. Temperature: of 102 F No Cyanosis Strong productive cough with moderate amount of thick yellow secretions. What should be done next?   Choose only ONE

Ventilator assessment reveals: Vent Settings: AC/VC 12, VT 500 ml, +5 cm H2O PEEP, and FIO2 60%. PIP: 35 cm H2O, Plateau Pressure: 20 cm H2O Total rate: 12 Exhaled tidal volume 550 ml Minute volume: 6.6 L/min What other assessments should be done at this time? Select as MANY as indicated

What happens to the temperature when liquid oxygen is converted into a gaseous oxygen?