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cardio pulm II > Cardio pull ICUs > Flashcards

Cardio pull ICUs Flashcards

0
Q

What is the hypoxia drive

A

When co2 is the stimuli for increasing RR and depth
This occurs when the co2 concentration is sensed by the brain. When a person is give O2 the periphery says that their is enough O2 and decreases RR &adepts

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1
Q

What is minute ventilation

A

Function of avolear ventilation and dead space

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2
Q

Where is the respiratory center of the brain

A

Pons and medulla

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3
Q

What are the direct (MD) ways to measure oxygenation

A

Aretial blood gas

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4
Q

What is normal O2 and co2 arterial pressure

A

O2- 80-100 mmHG

Co2- 35-45 mmHG

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5
Q

Saturated hgb absorbs what type of light?

A

Infrared

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6
Q

Desaturated hgb absorbs what type of light

A

Red

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7
Q

What does pulse of measure

A

The percentage of O2 saturated hgb

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8
Q

What doe chemoreceptors sense

A

Low O2

High co2

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9
Q

What do the pons and medulla primally sense

A

Changes in co2 and ph

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10
Q

What doe peripheral chemoreceptors sense

A

Oxygenation levels and ph

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11
Q

Peripheral chemoreceptors are primary for which population

A

COPD

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12
Q

What are the indications for O2 supplementation

A

Increased work of breathing

WOB 3mL/min or less 2% total metabolic rate

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13
Q

What are the two types of O2 delivery systems

A

Low flow

High flow

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14
Q

What are the characterizes of low flow O2

A

Enhances the person’s own oxygenation capabilities
Does not meet all of the persons O2 needs
Difficult to control the amount of o2supies

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15
Q

What does high flow provide

A

Meets all or most respiratory needs of a patient

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16
Q

What are the types of low flow

A

Nasal cannula
Face tent
Partial rebreather mask
Non rebreather mask

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17
Q

What are the types of high flow

A

Venturi mask
Tracheostomy collar
Ambu bag

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18
Q

What are the mechanical ventilation principals

A

Positve pressure from a vet pushes O2 into the lungs

19
Q

This cause ventilation to begin in mechanical ventilation

A

Trigger variable

20
Q

What is a limit variable

A

Pressure, volume or flow target that can’t be exceeded during inspiration

21
Q

What is cycling

A

What stops instruction by a ventilator. What a present pressure, volume, or time has been reached

22
Q

What is the normative pH value

A

7.35-7.45

23
Q

What is the normative PaCO2

A

35-45

24
Q

what is the normative value of Pa02

A

80-100

25
Q

what produces bicarb

A

kidneys

26
Q

what is the normal range of H2CO3

A

22-26

27
Q

increase in CO2 drives the education to the……

A

right

28
Q

decrease in H+ drives the education to the…….

A

right

29
Q

increase in CO3- drives the equation to the…..

A

left

30
Q

more H+ makes the system…..

and makes the pt

A

acidic

hyperventilate

31
Q

pH and C02 moving in the opposite directions

A

pulmonary issue

32
Q

pH and bicarbonate moving in the same direction

A

metabolic issue

33
Q

acid base in balance can result from what

A

pulmonary issue

metabolic issue

35
Q

Acidosis

A

pH< 7.35
below normal pH
co2 greater than 45 and low ph=resp origin

36
Q

what is the normal range of MAP

A

70-110 MMHG

37
Q

When do you terminate CR in terms of BP

A

MAP 180

>20% drop SBP or DBP

38
Q

when do you terminate rehab in terms of cognition

A

RASS < or equal to -3

increasing agitation in session

39
Q

when is it safe to mobilize in the ICU

A

vent is stable, PS < 20 cn h20, PEEP <10
assistance for lines
telemetry
safe

40
Q

what are the normative values of artery catheter

A 
SBP 15-21
DBP 4-13
MEAN 9-19
ALINE 100/75
NSR 100
NO ICP NEEDED
41
Q

what us the goal ranges of INR

A 
2-3
2.5-3.5 FOR VALVE REPLACEMENT
>4 risk of hemorrhage
risk of bleeding between 4-6; low level activities
> 6 PT IS HEALD
42
Q

what is the purpose of a D- Dimer

A

rule out DVT and PE

43
Q

what does BUN measure

A

kidney function

44
Q

BNP

A 
a hormone released by the heart
low in health hearts
high in failing hearts
< 1000 no HF
300-600 mild HF
600-900 mod HF
> 900 SEVERE hf`

NOT specific in healthy pt

45
Q

WBC

A

assess infection
4,000-11,000
> 11,00- infection
<4,000 imunosupressed

46
Q

HCT

A

assess blood loss and fluid balance
increased- polycythemia, dehydration
decreased- anomia, acute blood loss, hemodilution

females 37-47
males 42-52

47
Q

platelets

A

150000, 450000

< 50, ooo no strength training

cardio pulm II (4 decks)

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