In what order do the following five steps occur in the photochemical reaction centers?1) excitation of the chlorophyll a molecule at the reaction center2) replacement of the electron in the reaction center chlorophyll3) light excitation of antenna chlorophyll molecule4) passage of excited electron to electron-transfer chain5) exiton transfer to neighboring chlorophyll

The following data are obtained for a patient who is receiving mechanical ventilation.Time                PIP                   Pplat                Exhaled Vt0800                 35                    30                    .500 1000                 39                    34                    .500 1200                 42                    37                    .500 1400                 50                    45                    .500 What happened between 0800 and 1400?

The reaction below is______________________reaction. 2 H2 + O2       >  2 H2O       ΔH= – 572.4 kJ

Identify the state of the following description: The particles of a substance in a tank are very far apart.

A tracheostomy is usually done for three main reasons. Select the three main reasons. 

Select the facts regarding extubation.

A 58 kg patient is receiving mechanical ventilation via the PB 980 in the ICU. Ventilator and ABG results are: ABG:  pH 7.28/ PaCO2 56/ PaO2 76/ HCO3 25/ BE -1                        Mode: PC-AC                                          FiO2:   0                        Mandatory Rate: 10 bpm                       Total rate:  10 bpm                        PEEP: 7 cmH2O                                    Ti:  1.4 sec with a “no flow” zone on insp.                        Exhaled Vt:  390 mL                             Pinsp (delta P): 18 cmH2O                                What is the static compliance for this patient?

You are asked to assess the alveolar ventilation for a patient weighing 65 kg (IBW) and receiving a Vt of 600 mL who is being mechanically ventilated. You are given the following blood gas results and data:ABG: pH 7.49/ PaCO2 30/ PaO2 100/ HCO3 26, PECO2 = 10 torr, f = 22 bpm (This is the same data used in the previous question.) Calculate the minute alveolar ventilation in Lpm.

Speaking valves can be used on which two patient populations?

Fenestrated tubes consist of a tracheostomy tube with a fenestration, a removable inner cannula, the cuff deflated, and normal air passage occluded with plug, the patient can inhale, but not exhale through the fenestration and around the tube.