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Flashcards in PCM Stations Deck (20)
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1
Q

Percent of O2 in room air

A

21%

2
Q

supplemental O2 is necessary when pO2 is below _ mmHg or spO2 below _ mmHg

A

60 and 90

3
Q

supplemental O2 is humidified with _ to prevent drying

A

saline

4
Q

what is the flow rate and percent of O2 administered via Nasal cannula?

A
1L/min = 24% O2
plus 4% for each L/min. For example
1L= 24% O2
2L = 28
3L = 32
4L = 35%
5L = 40%
6L= 44%
5
Q

which type of oxygen mask is without reservoir and ambient gases can be pulled back in. has open ports on both sides of mask for ambient air flow

A

Rebreather mask

6
Q

what is the percent of O2 and rate of rebreather masks?

A
6L/min = 44% O2
7L/min = 48%
8L/min = 52%
9L/min = 56%
10L/min = 60%
7
Q

which type of oxygen mask has reservoir and ambient gasses cannot be pulled back in. It’s a one way valve from bag to the mouth. Its often used to avoid intubation in pts who cannot open their mouth or have sufficient excursion to breathe on their own

A

Non-rebreather

8
Q

What is the flow rate and percent of O2 with non-rebreather masks

A
6l/min = 60%
7L/min = 70%
8L/min = 80%
9L/min = 90%
10L/min = 100% O2
9
Q

which type of oxygen masks are used in pts that are hypercapnic with moderate hypoxemia. used esp in COPD pts; allows for highly regulated flow rates

A

Venturi mask. arterial blood gases and spO2 must be continually monitored

10
Q

normal forced expiratory flow is _ L/min

A

385

11
Q

A narrow curve on PFT indicates

A

restrictive disease (loss of elasticity)

12
Q

A scooped out curve on PFT indicates

A

Obstructive disorders (loss of recoil)

13
Q

what drug challenge can diagnose asthma?

A

methacoline

14
Q

what is the albuterol test used for?

A

COPD. improvement of PFT by 12% or 200cc after bronchodilators

15
Q

when determining rhythm, indicate what normal and abnormal for each of the following
A. PR interval
B. QRS complex
C. QT interval

A

A. Normal <0.2. elongated = First degree AV block; progressive elongation with dropped QRS = 2nd degree AV block; no association between P wave and QRS complex = third degree block

B. Normal <0.12. Longer = BBB block
C. normal = < 0.44; prolonged b electrolyte abnormality, congenital disease, acute MI. elongation –> torsades de points (antipsychotics, abx, antiarhythmics)

16
Q

what is the arterial supply for
A. Anterior leads
B. inferior leads
C. Lateral leads

A

A. LAB
B. R. coronary
C. Circumflex

17
Q

Peaked T waves indicates

A

hyperkalemia

18
Q

How is MI treated?

A

MONA -B

19
Q

when interpreting a Chest xray: what’s the first step?

A

confirm name and DOB, and date of xray

20
Q

in what order should Xrays be read?

A

DRSABCDE
D= details (name DOB, date)
R = RIPE (Radiation, Integration, Picture (angle/approach), Exposure (over or under penetration)
S = soft tissue and bones (ensure trachea is laying over spinous processes
A = airways (mediastinum size/space, heart should not be more than 1/2 mediastinum)
B = Breathing (lung fields; infiltates, masses, airfluid levels, pleura; heorrhage, consdiliations)
C = Circulation (heart blocks)
D = Diaphragm (ensure proper excursion; 6-7 rib spaces to diagphram, costodiaphragmatic angle; shallow angles indicates pleural effusion
E = extras