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Anaesthesia > Dvt > Flashcards

Dvt Flashcards

1
Q

Range of motion or ideal position for intubation

A

Sniffingor barking dog

Extension at atlantooccipital joint flexion at lower cervical joint

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2
Q

Modified position

A

Help head elevated laryngoscopy poition
Ramp-for obese and with large breast
Ear in line with suprasternal notch

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3
Q

BMV Disadvantage

A

Increase risk of aspiration

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4
Q

Contast flow device

A

Air entrainment mask/venturi mask

Oxygen flow > 60 L/min

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5
Q

Non breather mask used in

A

Covid care

Theoritically 100%fio2 delivered

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6
Q

Fixed o2 delivery device

A

Venturi mask
Having different colored valves
Copd

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7
Q

High flow nasal cannula

A

Machine
We can chooose the rate of flow of o2
Range 21%_100%
Gives heated and humidified oxygen

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8
Q

Oro pharyngeal airway a/k/a

A

Guedals hard plastic

Prevent tongue fall

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9
Q

Ideal position for laryngeal mask airway(fits outside pharynx but in oropharynx)

A

Tip of the lma is in front of oesophagus

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10
Q

Lma classic

A 
1 generation
Size
1 1.5 w 1.5 3,4,5,6
Most c  adult male-5
Female 4
Child of 30-50 kg 3
Maximjm cuff pressure 60 cm h2o
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11
Q

2 gen lma

A 
2 lumen 
Ventillating  tube gastric drain tube
Lma pro-seal-nobshape
Lma i gel-cuff less
Lma supreme-anatomical shape with two tube
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12
Q

Depth of insertion of et tube

A

21-23cms

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13
Q

Pediatric et

A

Uncuffed tube upto 8 yrs of age

Formula age/4+4

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14
Q

Capnography

A

Intraoperative monitoring

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15
Q

Depth of anaesthesia

A

Bispectral indefrontal processed eeg
100-0
Ga bis-40-60
100-awake

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16
Q

Pulse oxymeter pronciple

A

Beer lambert law
Normal so2 97-100%
False high reading-carboxy hb

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17
Q

No change in oxymeter reading

A

Dark skin
Bilirubin
Henna

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18
Q

Notmal etco2

A

35-45 mmhg
<35=hypocapnea
>45=hypercapnea

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19
Q

Shark fin appearnece kn capnography

A

Partially obstructed ett or obstructive lung disease (copd/bronchospasm)

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20
Q

Peripheral nerve stimulator

A

Neuromuscular monitoring
Mc nerev ulnar>facial nerve
Muscle-adductor pollicis>orbicularis oculi muscle

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21
Q

Mc used pnm

A

Accelero myogrphy

Patterns of stimulation-TOF,frequecy of stimulation 2 hz duration bw 2 TOF 10s

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22
Q

Criteria for extubation

A

TOF ratio reaches 0.9

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23
Q

Oxygen cylinder

A

Black body with white shoulder

Pin index 2,5

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24
Q

Entonox

A

Blue body w

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25
Q

Prevents wrong attachemnt of cylinder to machine

A

Pin index system

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26
Q

Wrong attachment of pipeline to machine

A

Diameter index safety system (DISS)

27
Q

O2 flush

A

Part of intermediate presuure system
Disavnatage
Barotrauma

28
Q

Flow meter

A

Measure sflow of gases
Thorpes tube
Conical pyrex glass
Bobbin float aluminium

29
Q

Principle of working of flow meter

A

Variable orifice constant pressure

30
Q

Vapoiriser

A 
Cloure coded
Purple isoflurane
Blue desflirane
Yellow sevoflura
Red halothane
31
Q

Specifal vapouriser for desflurane

A

Tec 6

32
Q

Mapleson circuits

A

Semi closed partial rebreathing

33
Q

Covaxial varialmt of mapleson circuits

A

Lacks modification

34
Q

Paediatric circuit

A 
Ayers piece E type 
Jackson and reese modifucation F type 
Both controlled and spontaneous respiration 
Wt <20 kgs
F better than E
35
Q

Mc route of loas of heat

A

Radiation convection conductoon evaporation

36
Q

Gold standard for temp monitoring

A

Pulmonary artey catheter

37
Q

Malignant hyperthermia

A 
Genetic defect chromosome 19
Trigger\_\_scoline,volatile agents
Abnormal rynodine receptors
Earliest and most sensitive _SUDDEN AND AVRUPT RISE OF ETCO2
late sign hyperthermia
Doc dantrolene(diluted in sterile watet)
2.5MG/KG*5 m8ns(max10mg/kg)
Infusion--1 mg/kg over 6 hours (24_48 hrs)
38
Q

Most common nerve injured

A

Ulnar

Lower limb common peronela

39
Q

Opthalmic complication

A

Corneal abrasion

40
Q

Post operational vision loss

A

Ishemic optic neuropathy

Optic nerve compression in prone surgeries

41
Q

Air embolism

A

Most sensitive invasive modality TEE trans esophageal echocardiography
Most sensitive non invasive precordial doppler

42
Q

Most common etiology for intarop anaphylaxis

A

Antibiotic> muscle relaxant> chorhexidine

Muscle relaxantRoc>scoline> atra

43
Q

Sellicks maneovour

A

Cricoid pressure prevent risk of aspirations

44
Q

Mechanism of action of local anesthetic

A 
Sodium channel blockers
SITE\_\_intracellular surface of sodium channel
Form for onset of action unionized
Active form cationic form
Use doesnt affect the rmp of nerve
45
Q

Drug of choice for cvs toxicity of la

A

20% intralipid solution 1.5 ml/kg f/b 0.25 ml/kg/min
Mechanism increases rate of recovery of blocked sodium channels
Others
Adrenaline and amiodarone mix of cardiac arrest
In severe cases extracirporeal membrane oxygenation used

46
Q

Dura cutting needle

A

Quinckes

Increased risk pf post dural pincture headaches

47
Q

Dura splitting needle

A

Whitacare

Decrease risk of pdph

48
Q

Pdph mx

A

Frst line conservative

Definitive epidural blood patch

49
Q

Caudal anesthesia entry point

A

Sacral hiatus

Not used <6 years becoz of ossification of sacrocoxygeal ligament

50
Q

Interscalene approach

A

Between scalene muscles
Shoulder and upper arm surgery
Ulnar nerve spared
Mc complications phrenic nerve palsy

51
Q

Axillary approach

A 
Around axillary artery
Radial median and ulnar nerve blocked
Below elbow procedures
Musculocutqneous nerve spared
Complio-arterial puncture
52
Q

Supraclavicular approach

A 
Lateral to subclavian artey
Division or cords blocked
Below elbow procedures
Nothing spared
Complications:phrenic nerve palsy,most specefic:pneumothorax
53
Q

Compresiion vemtillation ratiom in child

A

15:2

54
Q

Triple maneovour

A

Head tilt,chin lift,moth open,jaw thrust

55
Q

Choking or fb obstruction

A

More than 1 year old-comple airway obstruction-no sound-heimlich maneuver sub diaphragmatic thrust

Less than 1 5 back thrust and chest compressions

56
Q

Laryngoscope

A

Macintosh curved mc used in adults

Miller blade staright paediatric

57
Q

Air cylinder

A

Black body with black and white shoulder

Pi index 1,5

58
Q

Nitrous oxide cylinder

A

Blue color

Pin index 3,5

59
Q

Co2 cylinder

A

Grey color
Pin index >7.5%(1,6)
<7.5%(2,6)

60
Q

Entonox cylinder

A

Blue body with blue and white shoulder

Pun index 7

61
Q

Most commonly used circuit

A

Mepleson d bains modification

62
Q

Mc complications in anaesthesia

A

Post up nausea and vomiting

Agent of choice ondansetron

63
Q

Shockabke rhythm in cardiac arrest

A

VF VT need to defibrillate

64
Q

Non ahockable rhythm

A

Pulselesa electrical activity
Asystole
Do not defibrilate

Anaesthesia (1 decks)

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