Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Mech/Vent Unit 6 & 7

SPC Mechanical Ventilation Unit 6 & 7 PPV

Effects of PPV on Gas Distribution: Diaphragm can become less compliant (aka atrophy) if there is no what? Spontaneous Breathing
Effects of PPV on Gas Distribution? 1. Gas flow takes path of least resistance 2. Gas is redistributed to non-dependent regions. Alters V/Q
Effects of PPV on Gas Distribution: Increases size of conductive airways causing what? Increased Deadspace
Effects of PPV on Gas Distribution: Over-distended alveoli constrict blood flow causing what? Increased Deadspace
Effects of PPV on Gas Distribution: Increased VT and improvement of ventilation may lead to what? Decreased Deadspace
Effects of PPV on Pulmonary Blood Flow? 1. PPV/PEEP decreases C.O. 2. Redistribute pulmonary perfusion to lung periphery 3. Blood forced out of non-dependent lung regions 4. PEEP decrease pulmonary shunting
Effects of PPV on Pulmonary Blood Flow: Blood forced out of non-dependent lung regions means what? 1. Causes V/Q mismatch 2. Increases Deadspace
Effects of PPV on cardiovascular system? 1. Increase pressure to ALL thoracic vessels 2. Decrease in venous return to thorax 3. Decrease RV filling (preload) 4. Decrease SV 5. Decrease CO 6. Decrease SBP
Effects of PPV on ICP? PPV increases CVP (can be observed by jugular vein distension) decrease venous return then increase volume of blood in the cranium then increase ICP then decrease CPP (cerebral perfusion pressure) Results in Potential for Cerebral Hypoxemia
Effects of PPV on ICP: Greatest Clinical Risks 1. Patients who already have increased ICP's 2. Closed Head Injurys 3. Cerebral Tumors 4. Post-neurosurgery
Effects of PPV on Renal System? Decrease C.O. then Decrease renal blood flow then Urine output also Decrease C.O. then Decrease renal blood flow then increase ADH then decrease urine formation
Effects of PPV on Renal System: Redistribution of blood flow in the kidney means what? 1. Flow to outer cortex decreased, Flow to inner cortex increased. 2. Results in less urine, creatinine and sodium being excreted 3. Sodium reabsorbed = reabsorption of water
Effects of PPV on Renal System: Urinary output reduced as renal arterial pressure drops when? <75 mmHg but may stop if severe
Air Trapping with PPV can cause what? Increased alveolar pressure to be transmitted to the intrapleural space like an artificial peep effect. This can cause a decrease in venous return and a decreased C.O.
Importance of body positioning in PPV: Unilateral Lung Disease? 1. Independent lung ventilation (2 vents) 2. Place patient in a lateral position so that the "good lung" is down or in the dependent position.
Importance of body positioning in PPV: ARDS? Prone positioning may improve oxygenation
What are the 4 types of Barotrauma associated with PPV? 1. Subcutaneous Emphysema 2. Pneumomediastinum 3. Pneumothorax 4. Pneumopericardium
Created by: Langhout1418
Popular Respiratory Therapy sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards