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What 2 molecules are forming cross bridge during a muscle twitch?

The respiratory assessment of a 44-year-old female patient diagnosed with myasthenia gravis shows: vital capacity 475 mL, maximum inspiratory pressure (MIP) -18 cm H2O. The patient is 5 feet 6 inches tall and weighs 188 lbs. The most recent arterial blood gas on a 2 L/min nasal cannula is pH 7.32, partial pressure of carbon dioxide (PaCO2) 49 mm Hg, partial pressure of oxygen (PaO2) 77 mm Hg, arterial oxygen saturation (SaO2) 95%, bicarbonate (HCO3-) 24 mEq/L.The most appropriate recommendation for this patient is which of the following?                         2:4:4

A 47-year-old, 6’1” male patient is admitted to the hospital due to trauma from a motor vehicle accident. Forty-eight hours post admission, the patient is suffering from respiratory distress with severe hypoxemia and is intubated. A chest x-ray, done prior to intubation , reveals a ground glass appearance bilaterally. The physician requests the volume-controlled continuous mandatory ventilation (VC-CMV) mode for this patient. The initial settings for the ventilator should be which of the following?               2:6:13

The primary purpose of PEEP is to .

Calculate the pressure required to achieve a tidal volume of 400 mL for an intubated patient with a respiratory system compliance of 20 mL/cm H2O.                        1:1:8  

The primary goal of NPPV in the acute care setting is to do which of the following?

A 57-year-old, 5’3”, 165 lb female patient arrives in the open heart unit following coronary artery bypass surgery. The patient has a history of diabetes and no history of pulmonary disease. The most appropriate initial volume-controlled continuous mandatory ventilation (VC-CMV) settings are which of the following?               2:6:13

Full ventilatory support is provided by which of the following modes?               2:5:8

The respiratory therapist should expect which of the following findings while ventilating a patient with acute respiratory distress syndrome (ARDS)?                   1:1:6

During the 2000 U.S. presidential election, journalist Tim Russert devised the method of dividing the country into “red states” (primarily Republican) and “blue states” (primarily Democrat), which represents differences in the states’