NR 503 Chamberlain 2025 Edition – Study Smart with 100% Correct
Answers! (Graded A+)
Venturi Mask - can set the FIO2 and the L dosage
Simple Mask - FIO2 35-50% 6-12L
Nasal Cannula - FIO2 24-44% 1-6L
Non-rebreather mask - has a bag; FIO2 60-90% 10-15L
When to add humidity to oxygen? - over 4 L
1L = mL - 1000 ml
1 oz = mL - 30 ml
i kg = lb - 2.2 lbs
1 tbsp = ml - 15 ml
1 lb = oz - 16 oz
1 tbsp = tsp - 3 tsp
15 gtts = ml - 1 ml
1 tsp = ml - 5 ml
1 gal = pints - 8 pints
, 1 oz = g - 30 g
1 gal = quarts - 4 quarts
1 mg = mcg - 1000 mcg
PaCO2 range - 35-45 mmHg
HCO3 range - 21-28 mEq/L
pH range - 7.35-7.45
PaO2 range - 80-100 mmHg
SaO2 range - 95-100%
standard precautions - gown, gloves, eyewear, mask
airborne precautions (<5 microns) - eyewear, N95 mask, gown, gloves, neg pressure room
contact precautions - eyewear, gloves, gown, mask
droplet (>5 microns) - gloves, gown, mask, eyewear
Stage 1 pressure ulcer - unblanchable, red area, remove pressure and it will heal, not surface level
stage 2 pressure ulcer - partial thickness into epidermis maybe dermis, possible exposed nerves, no
slough no epidermis
stage 3 pressure ulcer - full thickness adipose tissue exposed; slough, eschar, undermining, and
tunneling may be present
Answers! (Graded A+)
Venturi Mask - can set the FIO2 and the L dosage
Simple Mask - FIO2 35-50% 6-12L
Nasal Cannula - FIO2 24-44% 1-6L
Non-rebreather mask - has a bag; FIO2 60-90% 10-15L
When to add humidity to oxygen? - over 4 L
1L = mL - 1000 ml
1 oz = mL - 30 ml
i kg = lb - 2.2 lbs
1 tbsp = ml - 15 ml
1 lb = oz - 16 oz
1 tbsp = tsp - 3 tsp
15 gtts = ml - 1 ml
1 tsp = ml - 5 ml
1 gal = pints - 8 pints
, 1 oz = g - 30 g
1 gal = quarts - 4 quarts
1 mg = mcg - 1000 mcg
PaCO2 range - 35-45 mmHg
HCO3 range - 21-28 mEq/L
pH range - 7.35-7.45
PaO2 range - 80-100 mmHg
SaO2 range - 95-100%
standard precautions - gown, gloves, eyewear, mask
airborne precautions (<5 microns) - eyewear, N95 mask, gown, gloves, neg pressure room
contact precautions - eyewear, gloves, gown, mask
droplet (>5 microns) - gloves, gown, mask, eyewear
Stage 1 pressure ulcer - unblanchable, red area, remove pressure and it will heal, not surface level
stage 2 pressure ulcer - partial thickness into epidermis maybe dermis, possible exposed nerves, no
slough no epidermis
stage 3 pressure ulcer - full thickness adipose tissue exposed; slough, eschar, undermining, and
tunneling may be present
