What is ventricular fibrillation?
A. Blood from the atria cannot be pumped into the ventricles because of a valve blockage.
B. The left ventricle cannot pump blood to the body because of a blockage in the aorta.
C. Individual muscle fibers of the heart beat independently, which results in a loss of blood circulation.
D. The heart beats too fast, which causes damage to the ventricles of the heart.
Answer: C
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Hydrogen ion activity can be expressed as which of the following?
a. pH = log10[H–] c. pH = –log10[H+] b. [H+] = log ? 10 d. pH = 1 ? 10?7 mol/L
A patient exhibits persistent stridor after a fiberoptic bronchoscopy procedure. Which of the fol-lowing would you recommend?
a. Aerosol therapy with albuterol (Proventil) b. Administration of a benzodiazepine (e.g., Valium) c. Aerosol therapy with racemic epinephrine d. Administration of a narcotic antagonist (e.g., Narcan)
____________________ is a subset of ventricular tachycardia with alternating amplitudes above and below the isoelectric line resulting from multiple irritable foci in the ventricles, essentially producing a multiform ventricular tachycardia.
Fill in the blank(s) with the appropriate word(s).
A recruitment maneuver (RM) is being performed on a patient receiving mechanical ventilation with PCV. During the maneuver the mode remains in PCV, rate = 10/min, I:E = 1:2, and PIP = 35 cm H2O
The following information is documented during the RM: Time 0800 0805 0810 0815 0820 0825 0830 0835 0840 PEEP 10 15 20 25 30 25 20 15 10 Static com-pliance 24 29 34 25 22 27 31 36 32 BP 126/68 124/66 118/58 110/55 106/58 112/60 118/62 115/60 117/62 HR 108 108 105 100 100 102 105 106 105 After the RM, the lungs are reinflated. At what level should the PEEP be set for this patient? a. 12 cm H2O b. 17 cm H2O c. 22 cm H2O d. 27 cm H2O