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N450 Respiratory-Questions with Correct Answers/Verified/ Latest Update 2024/2025 $10.49   Add to cart

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N450 Respiratory-Questions with Correct Answers/Verified/ Latest Update 2024/2025

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hypoxemia s/s -️️restless, SOB, pallor, cyanosis, increased RR/HR, accessory muscle use, pulse ox decrease nasal cannula -️️1-6 L/min 24-44% face mask -️️5-10 L/min 30-50% venturi mask -️️4-15 L/min 25-60% non-rebreather mask -️️10 L/min 80-95%

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  • August 2, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • N450
  • N450
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MikeHarris
N450 Respiratory-Questions with Correct Answers/Verified/ Latest Update
2024/2025
hypoxemia s/s - ✔️✔️restless, SOB, pallor, cyanosis, increased RR/HR, accessory muscle use, pulse
ox decrease



nasal cannula - ✔️✔️1-6 L/min

24-44%



face mask - ✔️✔️5-10 L/min

30-50%



venturi mask - ✔️✔️4-15 L/min

25-60%



non-rebreather mask - ✔️✔️10 L/min

80-95%



trach/t-piece - ✔️✔️10 L/min

humidified



high flow nasal cannula - ✔️✔️1-40 L/min

21-100%



O2 toxicity - ✔️✔️>50% FiO2 longer than 24 hours



CO2 narcosis in COPD patients - ✔️✔️lose drive to breathe d/t increased O2 use



impending resp. failure - ✔️✔️decreased HR, increased RR, decreased LOC/breaths (agonal)



earliest sign of resp. failure - ✔️✔️increased CO2 (earlier than pulse ox)

, end tidal CO2 - ✔️✔️measures CO2 at end expiration

patency of airway

early detection of change in CO2 production & elimination

assess effectiveness of intervention/CPR

check after intubation

PCA - breathe slow/shallow which increases CO2



oropharyngeal airway - ✔️✔️unconscious, stops tongue from blocking airway



nasopharyngeal airway - ✔️✔️if patient requires frequent NT suctioning to protect skin



ET tube - ✔️✔️ventilation, airway protection



suctioning - ✔️✔️hyperoxygenate, sterile technique

saline instillation is controversial



does patient need vent support? - ✔️✔️unable to maintain patent airway

inadequate gas exchange

resp failure - can't maintain adequate RR

measured by arterial blood pH, PaCO2, & PaO2

hypoxemic resp failure - PaO2 < 60

hypoxemic hypercapnic resp failure - PaO2 < 60, & PaCO2 > 55



nursing management - intubation - ✔️✔️patient assessment, monitor VS, equipment set-up,
collaborate with other disciplines, medication management



intubation supplies - ✔️✔️laryngoscope with blades/glidescope, ETT with stylet, 10cc syringe, end
tidal CO2 detector, ETT holder/tape with skin prep, suction set-up with yankauer, pulse ox, ambu
bag with mask, surgilube



general anesthetics (2) - ✔️✔️etomidate (amidate) 0.3 mg/kg (adults)

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