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Hypoxia and oxygen therapy 3

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HYPOXIA AND OXYGEN THERAPY PRESENTER : DR ANURADHA MODERATOR : DR SHAILA KAMATH
QUICK DEFINITION OF HYPOXIA ,[object Object],[object Object],HYPOXIA MEANS
SYMPTOMS OF HYPOXIA ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],eventually
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SIGNS OF HYPOXIA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
TYPES OF HYPOXIA
ARTERIAL(HYPOXIC) HYPOXIA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Po2(mmHg) O2 in blood(volumes %) ARTERIAL(HYPOXIC)HYPOXIA Arterial Po2 Venous Po2
STAGNANT(ISCHEMIC) HYPOXIA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Po2(mmHg) O2 in blood(volumes %) STAGNANT(ISCHEMIC)HYPOXIA Arterial Po2 Venous Po2 BUT
ANEMIC HYPOXIA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ANEMIC HYPOXIA Po2(mmHg) O2 in blood(volumes %) Arterial Po2 BUT Venous Po2
HISTOTOXIC HYPOXIA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
HISTOTOXIC HYPOXIA Po2(mmHg) O2 in blood(volumes %) Arterial Po2 Venous Po2 BUT
SUMMARY Effect of 100% O2 Arterial Po2 during exercise Arterial Pco2 Venous Po2 Arterial Po2 TYPE OF HYPOXIA ARTERIAL HYPOXIA dissolved O2 HISTOTOXIC HYPOXIA dissolved O2 ANEMIC HYPOXIA dissolved O2 STAGNANT HYPOXIA Arterial Po2<500mmHg Anatomic shunt Arterial Po2>600mmHg Physiologic shunt Arterial Po2>600mmHg Diffusion limitation Arterial Pco2 Hypoventilation
OXYGEN THERAPY ,[object Object],[object Object],[object Object]
AARC CLINICAL PRACTICE GUIDELINES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Oxygen Delivery System: Design and Performance. ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
FIXED AND VARIABLE PERFORMANCE SYSTEM ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
LOW FLOW SYSTEMS ,[object Object],[object Object],[object Object]
Types of low flow delivery systems. ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
DISADVANTAGES OF NASAL CATHETER ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
ESTIMATED FiO2 WITH NASAL CANNULA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
NASAL CATHETHER ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DISADVANTAGES OF NASAL CATHETER ,[object Object],[object Object],[object Object],[object Object],[object Object]
TRANSTRACHEAL CATHETER ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DISADVANTAGES ,[object Object],[object Object],[object Object],[object Object],[object Object]
Variables affecting the Fio2 of low flow oxygen systems. ,[object Object],[object Object],[object Object],[object Object],[object Object]
DECREASED FiO2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RESERVOIR SYSTEMS ,[object Object],[object Object],[object Object]
RESERVOIR CANNULAS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
PENDANT RESERVOIR ,[object Object],[object Object]
DISADVANTAGES OF RESERVOIR CANNULAS ,[object Object],[object Object],[object Object],[object Object],[object Object]
RESERVOIR MASKS ,[object Object],[object Object],[object Object],[object Object],[object Object]
SIMPLE FACE MASK ,[object Object],[object Object],[object Object],[object Object],[object Object]
SIMPLE FACE MASK ,[object Object],[object Object],[object Object],[object Object]
Advantages and Disadvantages ,[object Object],[object Object],[object Object],[object Object],[object Object]
ESTIMATED FiO2 WITH FACE MASK ,[object Object],[object Object],[object Object]
PARTIAL REBREATHING MASK AND NON REBREATHING MASK ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
NONREBREATHING MASK ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
NON REBREATHING RESERVOIR CIRCUIT ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Approximate O 2 concentration related to flow rates of semi venturi devices Twice o 2 flow 1:1 12 0.60 32 3:1 8 0.40 48 5:1 8 0.35 66 10:1 6 0.28 104 25:1 4 0.24 Total gas Flow (l/min) Air:oxygen entrainment Flow rate (l/min) FiO 2
[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
HYPERBARIC O 2 THERAPY ,[object Object],[object Object],[object Object],[object Object]
PRECAUTIONS AND COMPLICATIONS ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]
MONITORING ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EQUIPMENT MONITORING ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
HAZARDS OF OXYGEN THERAPY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
PHYSIOLOGIC RESPONSE OF EXPOSURE TO 100 % O 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
PATHOGENESIS OF O 2 TOXICITY ,[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],INCREASED SHUNTING
[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object]
RETINOPATHY OF PREMATURITY ,[object Object],[object Object],[object Object],[object Object]
ABSORPTION ATELECTASIS ,[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
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Hypoxia and oxygen therapy 3

  • 1. HYPOXIA AND OXYGEN THERAPY PRESENTER : DR ANURADHA MODERATOR : DR SHAILA KAMATH
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  • 10. Po2(mmHg) O2 in blood(volumes %) ARTERIAL(HYPOXIC)HYPOXIA Arterial Po2 Venous Po2
  • 11.
  • 12. Po2(mmHg) O2 in blood(volumes %) STAGNANT(ISCHEMIC)HYPOXIA Arterial Po2 Venous Po2 BUT
  • 13.
  • 14. ANEMIC HYPOXIA Po2(mmHg) O2 in blood(volumes %) Arterial Po2 BUT Venous Po2
  • 15.
  • 16. HISTOTOXIC HYPOXIA Po2(mmHg) O2 in blood(volumes %) Arterial Po2 Venous Po2 BUT
  • 17. SUMMARY Effect of 100% O2 Arterial Po2 during exercise Arterial Pco2 Venous Po2 Arterial Po2 TYPE OF HYPOXIA ARTERIAL HYPOXIA dissolved O2 HISTOTOXIC HYPOXIA dissolved O2 ANEMIC HYPOXIA dissolved O2 STAGNANT HYPOXIA Arterial Po2<500mmHg Anatomic shunt Arterial Po2>600mmHg Physiologic shunt Arterial Po2>600mmHg Diffusion limitation Arterial Pco2 Hypoventilation
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  • 60. Approximate O 2 concentration related to flow rates of semi venturi devices Twice o 2 flow 1:1 12 0.60 32 3:1 8 0.40 48 5:1 8 0.35 66 10:1 6 0.28 104 25:1 4 0.24 Total gas Flow (l/min) Air:oxygen entrainment Flow rate (l/min) FiO 2
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