NU551 Unit 7 Exam | Questions with 100% Correct
Answers | Verified | Latest Update 2026/2027
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Practice questions for this set
Learn 1 /7 Study using Learn
Max gas expelled from lungs
Choose an answer
What causes cyanosis and how much
1 2 Types of pneumothorax?
hemoglobin must be desaturated?
3 What is pleurisy and its main cause? 4 What is vital capacity?
Don't know?
Terms in this set (56)
What causes cyanosis and how much Bluish-purple discoloration due to ~5 g/dL of
hemoglobin must be desaturated? desaturated hemoglobin
, Where is cyanosis most visible? Lips, nail beds, earlobes (thin-skin areas)
What is clubbing and what is it Bulbous enlargement of fingertips/toes from
associated with? chronic low oxygen; linked to COPD, cystic fibrosis,
congenital heart disease, smokers, vapers
What is the pleura? Two-layer membrane around lungs with a fluid-
filled cavity between
What is pleurisy and its main cause? Inflammation of pleura (usually viral) → sharp chest
pain worse with breathing/coughing
Key clinical signs of pleurisy? Left-sided chest pain, shallow breathing, increased
HR/RR, normal breath sounds, no cyanosis
What is hypercapnia? Excess CO₂ in the blood (common in COPD)
What is hypoxia? Low oxygen in tissues; requires ABG interpretation
(pH, CO₂, HCO₃⁻)
What are the 5 causes of hypoxia? High altitude, diffusion problems, V/Q mismatch,
hypoventilation, shunt
What is flail chest? Rib/sternal fractures causing paradoxical chest wall
movement
What is pneumothorax? Air in pleural space → lung collapse
What are key signs of Increased RR, asymmetrical chest movement,
pneumothorax? decreased breath sounds
Types of pneumothorax? Spontaneous, tension, open, catamenial
Answers | Verified | Latest Update 2026/2027
Save
Practice questions for this set
Learn 1 /7 Study using Learn
Max gas expelled from lungs
Choose an answer
What causes cyanosis and how much
1 2 Types of pneumothorax?
hemoglobin must be desaturated?
3 What is pleurisy and its main cause? 4 What is vital capacity?
Don't know?
Terms in this set (56)
What causes cyanosis and how much Bluish-purple discoloration due to ~5 g/dL of
hemoglobin must be desaturated? desaturated hemoglobin
, Where is cyanosis most visible? Lips, nail beds, earlobes (thin-skin areas)
What is clubbing and what is it Bulbous enlargement of fingertips/toes from
associated with? chronic low oxygen; linked to COPD, cystic fibrosis,
congenital heart disease, smokers, vapers
What is the pleura? Two-layer membrane around lungs with a fluid-
filled cavity between
What is pleurisy and its main cause? Inflammation of pleura (usually viral) → sharp chest
pain worse with breathing/coughing
Key clinical signs of pleurisy? Left-sided chest pain, shallow breathing, increased
HR/RR, normal breath sounds, no cyanosis
What is hypercapnia? Excess CO₂ in the blood (common in COPD)
What is hypoxia? Low oxygen in tissues; requires ABG interpretation
(pH, CO₂, HCO₃⁻)
What are the 5 causes of hypoxia? High altitude, diffusion problems, V/Q mismatch,
hypoventilation, shunt
What is flail chest? Rib/sternal fractures causing paradoxical chest wall
movement
What is pneumothorax? Air in pleural space → lung collapse
What are key signs of Increased RR, asymmetrical chest movement,
pneumothorax? decreased breath sounds
Types of pneumothorax? Spontaneous, tension, open, catamenial
