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NR 224 Quiz 3 (Answered) 100% Correct, 176 Q&A. Latest Fall 2024/2025. $12.99   Add to cart

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NR 224 Quiz 3 (Answered) 100% Correct, 176 Q&A. Latest Fall 2024/2025.

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NR 224 Quiz 3 (Answered) 100% Correct, 176 Q&A. Latest Fall 2024/2025.

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  • September 25, 2024
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  • 2024/2025
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NR 224 Quiz 3 (Answered) 100%
Correct, 176 Q&A. Latest Fall
2024/2025.
What are some factors impacting oxygenation?

-Physiological factors
- Developmental factors
- Lifestyle factors
- Environmental factors

What are some physiological factors that impact oxygenation

- anemia
- Hypovolemia
- Fever
- Muscular dystrophy
- Increased metabolic rate
- Chest wall movement

What are two physiological changes that impact chest wall movement?

- pregnancy
- obesity

What are some alterations to respiratory functions?

- Hypoventilation
- Hyperventilation
- Hypoxia

What is the definition of hypoventilation?

- occurs when alveolar ventilation is inadequate to meet O2 demands
- occurs when alveolar ventilation is not sufficient enough to eliminate proper CO2 amounts

What is retained during hypoventilation?

- CO2

What does hypoventilation cause?

respiratory acidosis

What is the definition of hyperventilation?

- Lung removes CO2 faster than it is produced via cellular metabolism

,What is hyperventilation caused by?

- severe anxiety
- infection
- drugs
- acid-base imbalance

What are some signs / symptoms of hyperventilation?

- Rapid respiration
- sighing breaths
- numbness / tingling in hands/ feet
- light headedness
- loss of consciousness

What is the definition of hypoxia?

- inadequate tissue oxygenation at the cellular level.

What does hypoxia result from?

- deficiency in O2 delivery
- deficiency of O2 utilization at a cellular level

What can cause hypoxia to occur?

- decreased level of hemoglobin & lowered O2 carrying capacity of blood
- diminished concentration of inspired O2 at higher altitudes
- inability of tissue extraction O2 from the blood (cyanide poisoning)
- decreased diffusion of O2 from the alveoli to the blood (pneumonia)
- poor tissue perfusion w/ oxygenated blood
- impaired ventilation

What sickness / disease can cause hypoxia to occur?

- pneumonia

What physiological changes to the body can cause hypoxia?

- cyanide poisoning
- shock
- fractured ribs
- Chest trauma

What are some early signs and symptoms hypoxia?

- restlessness
- apprehension
- decreased level of consciousness (LOC)
- Dizziness
- Behavior changes

, What are some early vital sign changes with hypoxia?

- Blood pressure elevated (unless it is caused by shock)

How does shock impact hypoxia related to Blood pressure?

- Does not increase BP in early signs of blood pressure

What are some late signs and symptoms of hypoxia?

- Cyanosis
- Respiratory rate decreases

What are the two locations you can observe cyanosis in patients with hypoxia?

- Central cyanosis
- Peripheral cyanosis

Where can you see central cyanosis in clients with hypoxia?

- tongue
- soft palate
- Conjunctiva

Where can you peripheral cyanosis in clients with hypoxia?

- Lower extremities
- upper extremities
- nail beds
- earlobes

What is hypoxia a result of ?

- Constriction
- stagnant blood flow

What are some factors impacting oxygenation?

- Amount of dissolved O2 in plasma
- Amount of hemoglobin
- Ability of hemoglobin to bind with O2

What vital signs are observed in the late stages of hypoxia?

- respiratory rate decreases

What should a nurse assess during a physical examination of the lungs?

- assess accessory muscle usage
- assess clavicle elevation during respiration

What does one utilize percussion for when assessing the lungs?

- detects presence of abnormal fluid / air in lungs

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