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SRNAClinical Practicuum Prep > LEO CHEAT SHEET > Flashcards

LEO CHEAT SHEET Flashcards

1
Q

Larynx innervation is by the

A

Vagus nerve

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2
Q

Motor innervation of larynx: 2 parts

A

External Superior Laryngeal

Recurrent Laryngeal

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3
Q

the SLN (external branch) innervates the

A

Cricothyroid muscle, which tenses and adducts the vocal cords.

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4
Q

Which muscle TENSES the vocal cords

A

CricoThyroid muscle (add)

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5
Q

Which muscle RELAXES the vocal cords

A

ThyroaRytenoids

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6
Q

Muscle ADDUCT cord

A

Lateral Cricoarytenoids (bring it in from the side)

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7
Q

Muscle ABDUCT cord

A

Posterior Cricoarytenoids (You take it out back)

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8
Q

Sensory ABOVE VOCAL CORDS

A

Internal Superior Laryngeal

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9
Q

Sensory BELOW ABOVE LOCAL Cords

A

Recurrent Laryngeal

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10
Q

Pharynx: Motor provided by

A

Spinal Accessory

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11
Q

Pharynx: Sensory provided by

A

Glossopharyngeal

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12
Q

Normal P50 =

A

26-27 mm Hg

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13
Q

Factors shifting Oxygen Dissociation curve to the right

A 
CADET faces RiGHT
Increase CO2
Increase [H+] (Acidosis)
Decrease pH
Increase Temp
Increase 2-3 DPG
Sickle cell
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14
Q

Factors shifting Oxygen Dissociation curve to the LEFT

A 
Decrease CO2
Decrease [H+] (Alkalosis)
Increase pH
Decrease Temp
Increase CO poisoining(Carboxyhemoglobin)
Fetal Hemoglobin
Methemoglobin 
Sickle cell
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15
Q

Right shift significance

A

Release (RR) Decrease O2 affinity (increase RELEASE of O2 to the tissues)

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16
Q

Left shift significant

A

Love O2 (LL) Increase O2 affinity

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17
Q

Bohr effect” PaCO2 affects Oxyhemoglobin dissociation curve

A

A decrease in pH shifts the standard curve to the right, while an increase shifts it to the left.Carbon dioxide affects the curve in two ways: first, it influences intracellular pH, known as the Bohr Effect,
Co2 and H+ Affect O2 delivery

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18
Q

The oxyhemoglobin dissociation curve shows the relationship between the

A

hemoglobin saturation (SO2) at different oxygen tensions (PO2).

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19
Q

The P50

A

is the oxygen tension at which hemoglobin is 50% saturated.

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20
Q

The haldane effect states that

A

PaO2 affects the dissociation curve

21
Q

Hamburger shift is

A

Also known as Chloride shift. Cl- exchange for HCO3 in RBCs,, HCO2 out , Cl in ; non-pulmonary

22
Q

SaO2 of 90 is PaO2 of

A

60

23
Q

SaO2 of 70 is PaO2 of

A

40

24
Q

Dissolved O2 formula

A

0.003 x PaO2

25
Q

O2 bound to HgB =

A

(1.34 x HgB) (SaO2)

26
Q

Total O2 Content =

A

(0.003 X PaO2) + (1.34 X HgB) (SaO2)

27
Q

O2 consumption formula

A

250 ml/min which is 3-4 ml/kg/min

28
Q

Dissolved Co2

A

0.067 x PaCO2

29
Q

Control of ventilation is in the

A

Brainstem

30
Q

Primary Respiratory Center are

A

Dorsal Respiratory Group (Pacemaker)

Ventral Respiratory Group

31
Q

Primary Respiratory Center located in the

A

Medulla

32
Q

What are the 2nd respiratory Centers? where are they located ?

A

Apneustic
Pneumotaxic
PONS

33
Q

Receptors in medulla

A

Central chemoreceptors

34
Q

Peripheral Chemoreceptors,

A

The aortic and carotid bodies,

35
Q

Central chemoreceptors located in the Medulla respond to

A

Located within the medulla, they are sensitive to the pH of their environment. peripheral chemoreceptors:

36
Q

Role of Peripheral Chemoreceptors

A

which act principally to detect variation of the oxygen concentration in the arterial blood, also monitor arterial carbon dioxide and pH.

37
Q

Why are central and peripheral receptors important?

A

This is an important mechanism for maintaining arterial blood pO2, pCO2, and pH within appropriate physiological ranges.

38
Q

Hering-Breuer reflex:

A

Vagus nerve, prevents over- stretching prevent the over-inflation of the lung.

39
Q

Physiologic Dead Space =

A

Anatomic DS + Alveolar DS

40
Q

Anatomic DS =

A

Conducting air passageways + ETT≈ 2ml/kg

41
Q

Alveolar DS =

A

Ventilation without perfusion

42
Q

Compliance =

A

Δ V/ Δ P

43
Q

Lateral Decubitus Un-anesthesized: V is

A

Nondependent Decrease

Dependent Increase

44
Q

Lateral Decubitus Un-anesthesized: Q is

A

Nondependent Decrease

Dependent Increase

45
Q

Lateral Decubitus Anesthesized: V

A

Non dependent increase

Dependent Decrease

46
Q

Lateral Decubitus Anesthesized: Q

A

Non dependent decrease

Dependent Increase

47
Q

Jackson-REESE

A

Minimuim flow 5L/min

2.5-3 x MV

48
Q

Bain Circuit min flow

A

70ml/kg for CV, or 100-300ml/kg For SV

SRNAClinical Practicuum Prep (21 decks)

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