UWSD Quiz PDF

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quiz on UWSD with answers ...

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Question 1

The pleural cavity is the space between the two pleurae (visceral and parietal) of the lungs.

Where is the pleural space?

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Question 2

What conditions would require a chest Drain?

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Pneumothorax Haemo Pneumohaemothorax Pleural effusion Chylothorax Post surgery to decrease risk of pneumothorax developing

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Question 3

What is a pneumothorax?

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Occurs when there is an opening on the surface of the lung or in the airways, in the chest wall – or both. The opening allows air to enter the pleural space between the pleurae, creating an actual space.

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Question 4

What are the 2 classifications of pneumothorax?

Open – opening in the chest wall (with or without lung puncture) Allows air to enter the pleural space eg penetrating trauma from a stab, gunshot, impalement etc Closed – chest wall is intact but rupture of the lung and visceral pleura (or airway) allows air into the pleural space.

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Question 5

Does a chest tube pass through the ribs?

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Yes, it passes through the intercostal muscles.

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Question 6

What are the three chambers of UWSD and what is the function of each?

1. Drainage chamber – to collect fluid 2. Water seal chamber – to identify airleak and prevent air recollecting in the pleural cavity 3.

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Source: http://www.atriumu.com/

Question 7

An airleak will be visible in the water seal chamber.

Where do you monitor for an airleak and what chamber is this?

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Source: http://www.atriumu.com/

Question 8

What does an airleak in the chamber indicate?

Air leaving the pleural cavity or a leak in the circuit. An airleak will be present in a pneumothorax that continues to have air in the pleural cavity. The air leak level will vary depending on the size of the leak.

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Question 9

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What documentation is required for a pt with a chest tube?

Dressing Bubble, swing and drain Amt and type of drainage Suction level

Source: http://www.atriumu.com/ Source: http://www.atriumu.com/ Question 10

How do you know the suction level to administer and how do you know what level of suction you have set?

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The suction level is ordered by the medical team. In a wet circuit you will fill water to the level of suction and then require gentle bubbling when suction is applied. In a dry circuit you will turn the dial to the appropriate level of suction and see the bellows when suction is applied.

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Question 11

What emergency equipment do you want to keep at the bedside of a pt with a chest tube?

2x Kelly clamps 500mL bottle sterile water Vasoline gauze Sterile drape Gauze

Source: http://www.atriumu.com/ Source: http://www.atriumu.com/ Question 12

Which of the following is an anterior part of the thoracic cavity? 1. Ribs, 2. Sternum, 3. Vertebrae 4. Diaphragm

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2.

Sternum,

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Question 13

Answer

Arrange the following in the correct order from the beginning of a breath through to exhalation. 1. Diaphragm moves down, increasing Correct order should be 2, 1, 3, 4, 5. volume 2. Phrenic nerve stimulates diaphragm to contract 3. Relative negative pressure pulls air into the lungs 4. Diaphragm moves up, decreasing volume 5. Air leaves the lung. Source: http://www.atriumu.com/ Source: http://www.atriumu.com/ Question 14 Answer

The tissue that covers the lung is called the______?

Visceral pleura

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Question 15

Answer

A life-threatening mediastinal shift is most likely to occur with a _____?

A tension pneumothorax

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Question 16

Answer

Why is the tubing in a one-bottle chest drain system placed under water?

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To prevent air re-entering the pleural space.

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Question 17

What do you do when you accidently break the UWSD and it is disconnected from the chest tube?

Answer

Clamp chest tube, apply sterile drape around end of catheter, clean end of catheter and connect new UWSD, unclamp and notify medical team. If inserted for a pneumothorax and it will take some time to replace UWSD insert catheter under water level in a bottle of sterile water then unclamp. Source: http://www.atriumu.com/

Source: http://www.atriumu.com/ Question 18

Is suction always required for a chest tube?

Answer

No, in fact suction has been shown to increase pain and tissue trauma.

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Question 19

Answer

When do you apply clamps to a chest tube?

Clamps are applied in case of accidental disconnection and under Dr’s orders.

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Question 20

Answer

Should you milk the chest drain to ensure adequate measure of fluid loss?

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No, milking will result in changes in pleural pressures and can actually damage lung pleura.

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