Related questions with answers
Evaluate each of the following statements about chest tube drainage systems. Enter “T” for true or “F” for false. Discuss why the false statements are incorrect.
. It is the height of the column of water in the suction control mechanism, not the setting of the suction source, that actually limits the amount of suction transmitted to the pleural cavity.
. A suction pressure of cm is commonly recommended for adults.
. Bubbling in the water-seal chamber usually means that air is leaking from the lungs, the tubing, or the insertion site.
. The rise and fall of the water level with the patient's respirations reflect normal pressure changes in the pleural cavity with respirations.
. The chamber is a closed system; therefore, water cannot evaporate.
. To declot the drainage tubing, put lotion on your hands, compress the tubing, and vigorously strip long segments of the tubing before releasing.
. You lower the bed on top of the drainage system and break it. You immediately clamp the chest tube, leaving it clamped until you can reestablish the drainage system.
. The chest tube becomes disconnected from the drainage system. Because you noted an air leak from the lung during your initial assessment, you can submerge the chest tube to inches below the surface of a mL bottle of sterile saline or water.
. The collection chamber is full, so you need to connect a new drainage system to the chest tube. It is appropriate to momentarily clamp the chest tube while you disconnect the old system and reconnect the new.
. The drainage system falls over, spilling the chest drainage into the other drainage columns. The total amount of drainage can be obtained by adding the amount of drainage in each of the columns.
Solution
VerifiedCorrections to false statements:
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- Suction pressure is negative; −20 cm H2O is common.
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- The chest drainage system is not a closed system, and H2O evaporates over time. Observe the H2O level and add sterile H2O or NaCl using a sterile catheter tip syringe as needed.
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- This procedure, called chest tube stripping, is dangerous and should be avoided. Chest tube stripping can cause tissue biopsy (pieces of tissue are sucked through the holes of the chest tube); this procedure can generate up to 400 cm H2O pressure!
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- Clamping the chest tube in the presence of an air leak can result in a tension pneumothorax. If you disconnect the tubing without clamping the tubing, the lungs can pull air into the chest cavity; therefore, you need to clamp briefly to exchange the broken chamber for a new one.
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