Dyspnoea Flashcards

1
Q

Becks triad

A

Low bp
Raised jvp
Muffled heart sound
Seen in tamponade

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2
Q

Causes of acute breathlessness

A
Pe
Pneumo
Chf
Tamponade
Anaphylaxis 
Fb
Exacerbation
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3
Q

Asthma progression

A

Non progressive

Only on trigger

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4
Q

Gradually provressive

A

Copd
Ild
Cardiac failure

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5
Q

Nyha 4 grades

A

1- no sob on normal activities
2- sob on “”
3- sob on less than
4- on rest

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6
Q

Mmrc 4 grades

A
0- strenous
1- uphill
2- walk slow than contemporaries 
3' stop for taking breath
4- undressing / dressing
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7
Q

Other

A
Sherwood jones
1- able tp do house hold work
2-  able to do work around chair 
3- totally confined to chair
4- moribund
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8
Q

Mechanism of orthopnea in copd

A

Hyperinflated lungs-lie down- diaphragm pushes up- compromise in lung function

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9
Q

Pnd time

A

2-3 hrs after sleep

Relieve- 30 min

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10
Q

Mechanism of pnd

A

Sleep- sympathetic activity decreases
Pao2 decreased
Redistribution of blood in pv

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11
Q

Platypnoea

A
On standing up
La myxoma
Pulmonary av fistula(hps)
Pe
Intra cardiac shunts
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12
Q

Trepopnea and causes

A

On side

Effusion/ cardiac failure

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13
Q

Hypopnea

A

Reduction on amplutude and duration of breathing

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14
Q

Orthodeoxia

A

Desat on standing up more than 3%

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15
Q

Hyperpnea

A

Increase in rate and depth of breathing

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16
Q

Hyper ventilation

A

At the level of alveoli hyperpnea

17
Q

Paradoxical respiration

A

Inward movt of chest during inspiration

Flial chest

18
Q

Receptors in breathlessness

A

Alveoli - j
Stretch - muscle , ribcage , pleura
Chemo- carotid body o2 and co2
Muscle receptors

19
Q

Physiological causes

A

Exercise
Anxiety
Pregnancy

20
Q

Insidious with rapid progression

A

Infection, effusion, malignancy

21
Q

Grades

A

Sgrq
Emrc
Subjective- vas , borg

22
Q

Relieving factors for dyspnoea

A

Drugs
Procedure- tap , bronchoscopy
Niv

23
Q

Nocturnal dyspnoea

A

Lvh
Sleep disordered breathing
Copd
Ba

24
Q

Dyspnoea with syncope

A

Pe
Phtn
Mi
Arrythmias

25
Q

Dyspnoea in cancer

A

Collapse
Effusion
Lymphangitis carcinomatosis

26
Q

What is dyspnoea

A

Sensation of difficult or uncomfortable breathing

27
Q

Cor pulmonale

A

Right sided heart starts to fail bcoz of high bp in arteries of lung

28
Q

Causes of orthopnea

A

Cardiac - lvf, effusion. Constrivtive Pericarditis
Ascites
Copd
B/l diaphragm paralysis

29
Q

Mimickers of pnd

A
Asthma
Sleep apnkea with arousal
Cheyne stokes
Pnd
Anxiety
Aspiration in gerd
30
Q

Mechanism of platypnoea

A

Shunts ( cardiac, pulmonary)

31
Q

Acute

Chronic

A

24-48 hrs

More than one month

32
Q

Sulph hemoglobinemia

A

Dapsone /sulphonamides

33
Q

Meth hemoglobinemia

A

Nitrite/nitrites

34
Q

Mechanism of dyspnoea in copd

A

Increased ventilatory demand: increased physiological dead space
Muscle weakness
Dynamic airway compression during expiration.
Dynamic hyperinflation