Fetal lung maturity on a new born can be evaluated to be normal by which of the following?

A post-op patient is receiving 50% oxygen via an air-entrainment nebulizer. The SpO2 has decreased to 90% and the minute ventilation is 13.9 L/min. Which of the following would increase the total flow to the patient to maintain an oxygen delivery of 50%?I. Bleed in 5 L/min to the air-entrainment nebulizerII. change to a dual flow nebulizer device with both air-entrainment nebulizers set at 50% with     15 L/min flowIII. Switch to a gas-injection nebulizer (GIN) with an oxygen flow rate set at 22 L/min and an       air flow meter set at 37 L/min

A patient who is mechanically ventilated is suspected of having a bronchopleural fistula. The respiratory therapist on duty is asked to make a recommendation for a different mode of ventilation. Which of the following should the RT recommend?

An intubated patient with Chronic Obstructive Pulmonary Disease (COPD) is breathing on pressure support ventilation (PSV) 13 cm H2O with positive-end-expiratory pressure (PEEP) 5 cm H2O and a flow cycle setting of 25%. The pressure-time scalar shown in the figure is evaluated by the respiratory therapist. What action should the respiratory therapist take at this time?

For which of the following patients requiring ventilatory support would you recommend against using a heat-moisture exchanger (HME) for airway humidification?I. patient whose expired VT is less than 70% of the delivered VTII. patient with a spontaneous minute ventilation of 14 L/minIII. patient with body temperature less than 32° C

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A 2year old boy enters the emergency room drooling and in respiratory distress with stridor. The physician believes she is suffering from epiglottitis but tonsillitis and foreign body aspiration cannot be ruled out. Which of the following diagnostic procedures should the RRT recommend?

Which of the following clinical signs are included in the APGAR score for clinically evaluating a neonate?I. Heart rateII. ventilatory rateIII. colorIV. reflex irritabilityV. muscle tone

A home care patient calls the DME company for which you are employed and reports her oxygen concentrator has stopped working. You instruct her to switch over to her H-cylinder backup system until you are able to go make a home visit and check the oxygen concentrator. You ask the patient to read the pressure gauge so that you know how much time you have until the H-cylinder will be empty. It is reported the H cylinder reads 2000 psig and the patient uses 2.5 L/min/NC continuously. How long will the cylinder last?

A patient is being weaned from mechanical ventilation by placing them on a Briggs T-adaptor trials. The physician orders for 15 minute trials each hour. The following were obtained prior to the first trial:HR: 80 bpmVC: 10 mL/kgFiO2: 0.40SpO2: 94%After breathing 10 minutes on the Briggs T-adaptor, the following are measured:HR: 100 bpmVC: 5 mL/kgFiO2: 0.40SpO2: 86%What should the respiratory therapist recommend?