Pilbeam’s Mechanical Word Scramble
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| Question | Answer |
| What is the normal range for cardiac output? | 4 to 8 L/min |
| To reduce the risk of barotrauma on PCV the flow pattern should be set to ____. | descending ramp |
| Which of the following is NOT associated with an increase in central venous pressure? | Dehydration |
| One of the ways of providing mechanical ventilation is the use of a volume-targeted breath with a constant inspiratory gas flow. The resulting flow scalar will be configured as a(n) ____. | rectangular or square wave |
| The relationship, "the pressure delivery to the lungs will depend on the stiffness of the lung," can be graphically and mathematically represented as ____. | ΔP = ΔV/C |
| The alveolar pressure curve will resemble in appearance the volume delivery curve, regardless of the type of volume waveform that is present. | True |
| These curves were measured on a mechanically ventilated patient: Curve A was measured at 7 a.m. Curve B was measured at 11 a.m. There was no change in delivered tidal volume between 7 and 11 a.m. | |
| The pressure (PIP) required to ventilate the patient increased | True |
| Between 7 and 11, the patient's airway resistance (Raw) decreased | False |
| Many of the newer microprocessor ventilators have very high gas pressure sources, in the range of 400 to 700 cm H2O. This is enough pressure to produce a constant flow of gas during inspiration for any clinical situation one might encounter. | True |
| Another type of ventilator graphic is called a loop. These are displays of two variables plotted on the x-y coordinates. | True |
| The purpose of ventilator graphics includes all of the following except ____. | making an assessment of the supply pressures to the ventilator |
| With a constant flow, the rise in volume is expected to be displayed at a non-constant rate. | False |
| The following graphic is a ____________________ and represents ___________________. | volume scalar, increased expiratory volume and possible dysynchrony |
| What is the normal range for mean arterial pressure? | 80 to 100 mm Hg |
| When PC CMV is the mode of ventilation, the resulting flow scalar will be configured as a(n) ____. | descending ramp |
| Scalars displayed during mechanical ventilation include all of the following except ____. | flow vs. volume |
| What is the normal central venous pressure reading? | 2 to 6 mm Hg |
| The greater this pressure gradient, the faster the flow of gas and the sooner the lungs fill: this could be graphically and mathematically stated as ____. | Flow = V/TI |
| What is the normal range for pulmonary capillary wedge pressure? | 5 to 10 mm Hg |
| The curve representing PTA will not always resemble the curve for flow. | False |
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