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Fall Cardiac Theory > Pulmonary Pressures > Flashcards

Pulmonary Pressures Flashcards

1
Q

PASP equation WITHOUT PS and what are the steps?

A

PASP = 4(V tr)² + RAP

1st → CW- PSAX AV - TV - PEAK VELOCITY - SYSTOLE
2nd we evaluate IVC = RAP
3rd we calculate

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2
Q

PASP equation WITH PS and what are the steps?

A

PASP = [4(V tr)² + RAP] - [4(V ps)²]

1st → CW- PSAX AV - TV - PEAK VELOCITY - SYSTOLE
2nd we evaluate IVC = RAP
3rd → CW- PSAX AV - PV - PEAK VELOCITY - SYSTOLE

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3
Q

What is a NORMAL RAP?

A

0-5 mmHg

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4
Q

What are the RAP Norms?

A

IVC ≤ 2.1 > 50% collapse 3mmHg
IVC > 2.1 > 50% collapse 8mmHg
IVC ≤ 2.1 < 50% collapse 8mmHg
IVC > 2.1 < 50% collapse 15mmHg

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5
Q

What are the PASP Norms?

A

Mild PHTN: 36-50 mmHg
Mod PHTN: 51-70 mmHg
Severe PHTN: >70 mmHg

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6
Q

How can you calculate % of collapse?

A

eye ball or

widest diameter - smallest diameter x 100
widest diameter

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7
Q

What is the PADP or PAEDP equation?

A

PADP = 4 (PI EDV)² + RAP

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8
Q

What are the steps for finding PADP?

A

1st. CW - PSAX AV - PV - EDV - DIASTOLE
2nd. we evaluate IVC for RAP via M Mode or eyeball

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9
Q

What are the PADP Norms?

A

Normal ≤ 12 mmHg
PHTH > 12 mmHg

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10
Q

What is PAC and what determines it?

A

-used to find MPAP
-time from the start of pulmonic flow to peak velocity
-with the PW SG in the RVOT proximal of PV

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11
Q

List the steps to acquire a PAC

A

PW - PSAX AV - RVOT prox of leaflets - PAC- SYSTOLE

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12
Q

What is the most common MPAP REGRESSION equation?

A

MPAP = 79 - (.45 x PAC)

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13
Q

What is the 1/3 2/3 MPAP Equation?

A

MPAP = ⅓ PASP + ⅔ PAEDP

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14
Q

What is the TR MPG MPAP Equation?

A

MPAP = MPG on TR jet + RAP

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15
Q

What is the PEAK PI MPAP Equation?

A

MPAP = 4 (MAX PI velocity)² + RAP

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16
Q

What are the MPAP Norms?

A

Normal < 25 mmHg
PHTN ≥ 25 mmHg

17
Q

In the care unit, the catheter is typically inserted into?

A

subclavian vein

18
Q

Central Venous Line is advanced into? & what does it measure?

A

-lower third of the SVC near the RA
- central venous pressure wave that resembles RA pressure wave

19
Q

What is a nomarl CVP/RAP?

20
Q

What conditions elevate CVP?

A
  1. heart failure
  2. tension pneumothorax
  3. pericardial restriction
  4. septic shock
21
Q

What conditions lower CVP?

A
  1. hypovolemia
  2. venodilation
22
Q

Swan Ganz Catheter is advanced into? & what does it measure?

A

-the right heart with its tip at the PA bifurcation
- RA and RV pressures

23
Q

What are advantages Swan Ganz Catheter?

A
  1. accurate
  2. ability to measure continuously over days
  3. PVR can be calculated
24
Q

What are disadvantages of Swan Ganz Catheter?

A
  1. cost and potential complications

Fall Cardiac Theory (18 decks)

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