Oxygen Therapy Flashcards

Question

Hypoxia that does not benefit from O2 therapy?

Answer 1

histotoxic

Answer 2

1. Hypoxia – when PaO2 comes down to 60mmHg 2. Normoxic hypoxia – like low cardiac output state, anemia, CO Poisoning 3. Trapped gases – like obstruction, pneumocephalus (air in the brain) 4. Special situation – like anesthesia

Answer 3

1. Restlessness 2. Disorientation, confusion 3. In-coordination, impaired judgment 4. Hyperventilation - air hunger 5. Circulatory changes (tachycardia > brady

Answer 4

1. Fatigue, drowsiness 2. Inattentiveness 3. Apathy 4. delayed reaction time

Answer 5

1. Presence of clinical indicators 2. Measurement of inadequate oxygen saturation - Arterial blood gas - Pulse oximetry

Answer 6

contribute partially to inspired gas client breathes e.g. nasal cannula, simple mask , non-re breather mask , rebreather mask

Answer 7

deliver specific and constant percent of oxygen independent of client’s breathing e.g. Venturi mask, trach collar, T-piece

Answer 8

- The prongs protrude 1 cm into nares - Used for low concentrations of Oxygen 24-44% at 1-6L/min. - Patient are able to talk and eat with oxygen in place - May cause irritation to the nasal and pharyngeal mucosa - If oxygen flow rates are above 4 L/min variable FiO2

Answer 9

- Client exhales through ports on sides of mask - Air entrained through ports if O2 flow through does not meet peak inspiratory flow - It delivers 35% to 60% oxygen at 6-10 L/min. - Flow must be at least 5 L/min to avoid CO2 build up and resistance to breathing - Potential for skin breakdown due to pressure and moisture - Uncomfortable while eating or talking and Obstruct coughing.

Answer 10

- It is used to deliver oxygen concentrations up to 80% at 8-12L/m. - O2 directed into reservoir - it works by: 1. Inspiration: draw gas from bag & room air 2. Expiration: first 1/3 of exhaled gas goes into bag (dead space) 3. Dead space gas mixes with ‘new’ O2 going into bag NB: Bag should remain at least 1/3 full during inspiration

Answer 11

- Have 2 one-way valves at exhalation ports and bag - This mask provides the highest concentration of oxygen (95-100%) at 10-15L/min. - Client can only inhale from reservoir bag - Valve prevents exhaled gas flow into reservoir bag - Valve over exhalation ports prevents air entrainment. - Bag must remain inflated at all times - For Critical illness / Trauma patients, Post-cardiac or respiratory arrest - Effective for short term treatment

Answer 12

- It is high flow concentration of oxygen. - Oxygen from 24 - 60% At liters flow of 4 to 15 L/min. - Aims to deliver constant and most precise oxygen concentration within and between breaths. - With TACHYPNOEA (RR >30/min) the oxygen flow should be increased by 50% - Increasing flow does not increase oxygen concentration, it is a fixed dose device - Good device for patients with raised C02 (patients with a target of 88-92%)

Answer 13

1. Drying of mucous membrane 2. Depression of ventilation in COPD 3. Reversal of compensatory hypoxic vasoconstriction 4. Atelectasis due to absorption collapse 5. O2 toxicity

Answer 14

1. Avoid laying patient flat on back. 2. Raise head of bed. 3. Encourage deep breathing/coughing

Answer 15

1. Patient position - Semi-Fowlers position 2. Pursed lip breathing 3. Abdominal breathing. 4. Anxiety relief

Answer 16

1. Breathing pattern regular and at normal rate. 2. pink color in nail beds, lips, conjunctiva of eyes. 3. No confusion, disorientation, difficulty with cognition. 4. Arterial oxygen concentration or hemoglobin 5. Oxygen saturation within normal limits.