Newton is the unit of measure for which of the following?

A surgical resident has asked that you assist in an elective tracheotomy procedure on an orally intubated patient. Which of the following would be an appropriate action during the procedure?

Of all the energy involved in x-ray production, _________ is converted to x-ray energy.

Which of the following are contraindicated in cardiopulmonary stress testing?I. an unstable asthmatic patientII. a patient who has a baseline B/P of 210/100III. a patient who has a FEV1% of 67% exhibits on their PFTsIV. suffers from mild arthritis in her kneesV. has the following baseline blood gas: pH 7.45, PaCO2 50 mmHg, PaO2 45 mmHg

Which port should be utilized to attain a sample for a mixed venous (SvO2) reading on a PA Catheter?

A patient has undergone external cardioversion had to be given a large dose of diazepam prior to the procedure to attain adequate sedation. After successful conversion to a normal sinus rhythm, the patient remains sedated and difficult to rouse. Which of the following pharmocologic agents would be appropriate to administer at this time?

Which type of material is strongly attracted to a magnetic field?

Lower airway anesthesia for fiberoptic bronchoscopy can be achieved via which of the following routes of administration?I. bronchoscopic instillation II. intravenous administration III. aeosolized nebulization IV. topical anesthetic

Which component of the induction motor is located outside of the glass envelope?

Your patient has a P(A–a)O2 of 600 mm Hg while breathing 100% oxygen. What is the estimated percentage shunt?