Hypoxia And Cyanosis

Question 0

Hypoxia induced increase in expression of key proteins is governed by

Answer 0

HIF1

Question 1

Atp production inadequate to mert energy reqts, cell membrane depolarization leads to uncontrolled ca influx… Leading to

Answer 1

Cell swelling and cell death

Question 2

Causes impaired judgment, motor incoordination and clinical picture resembling acute acohol intox

Answer 2

Acute hypoxia

Question 3

Characterized by headache secondary to cerebral vasodilation…

Answer 3

High altitude illness

Question 4

Manifested by severe headache and papilledema and coma

Answer 4

HIgh altitude cerebal edema

Question 5

Cyanosis present since birth or infancy

Answer 5

Congenital heart disease

Question 6

How to differentiate central from peripheral cyanosis?

Answer 6

Gentle warming of cyanotic extrrmity abolish peripheral not central

Question 7

Peripheral cyanosis is not associated with?

Answer 7

Clubbing

Question 8

Clubbing with respiratory diseases is associated with

Answer 8

Hypertrophic osteoarthripathy

Question 9

Florid skin characteristic

Answer 9

Polycythemia vera

Question 10

Cherry colored flush

Answer 10

CO Hb

Question 11

Detectable Fall of o2 sat in dark skinned

Answer 11

75%

Question 12

Cyanosis becomes apparent when concentration of reduced hemoglobin in capillary exceeds..

Answer 12

4 g/dl

Question 13

Cyanosis in altitude ascent of

Answer 13

4000m 13000ft

Question 14

Secondary polycythemia is present and clubbing

Answer 14

Chronic central cyanosis

Question 15

Digital clubbing not present in these rare conditions

Answer 15

Met HB and Sulf HB

Question 16

Most common cause of respiratory hupoxia

Answer 16

V/q mismatch

Question 17

Condition wherein intrapulmonleft to right shunting is the mechanism

Answer 17

Atelectasis

Question 18

In CO poisoning dissociation curve is shifted to

Answer 18

Left

Question 19

pao2 is normal but tissue and venous po2 are reduced as a conqequence of reduced tissue perfusion and greater tissue oxygen extraction

Answer 19

Circulatory hypoxia

Question 20

Conditions for circ hypoxia

Answer 20

Shock

Heart failurr

Question 21

Tissues are unable to utilize oxygen and results to venous blood having high oxygen tension

Answer 21

Histotoxic hypoxia

Question 22

Important mechanism for chronic hypoxia

Answer 22

Increase in hb concentration and #rbcs

Question 23

Define by ft:
High altitude illness
Chronic mountain sickness

Answer 23

13000 ft

Gt 13000 ft