NSG 3500 EXAM 4
Nursing Practice - Maternal
Health - Galen
Actual Questions and Answers
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,This Exam contains:
Galen College Of Nursing Exam 4
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, NSG 3500 EXAM 4
What are the 4 factors that influence initiation of the first breath?:
Answer:
- Chemical factors (hypercarbia, acidosis, hypoxia)
- Sensory factors (stimuli such as noise, light, touch)
- Thermal factors (sudden temperature change)
- Mechanical factors (thoracic squeeze during birth clears lung fluid)
Explanation: These factors collectively stimulate the newborn’s respiratory center to initiate and maintain
effective breathing at birth.
2. Why does hypoxia, hypercarbia, and acidosis trigger respirations?:
Answer:
- Hypoxia lowers blood oxygen (PO2) levels and pH, indicating oxygen deficiency.
- Carbon dioxide (PCO2) levels rise, stimulating the respiratory center in the medulla to increase respiratory
effort.
Explanation: The medullary respiratory center responds to elevated CO2 and lowered O2/pH by triggering
spontaneous breathing to oxygenate the blood and remove excess CO2, essential for neonatal adaptation.
3. Periodic breathing in a newborn is not usually associated with any change in skin color or HR.
How long are these pauses?:
Answer: 5-15 seconds
Explanation: Periodic breathing is a benign, immature breathing pattern in newborns involving brief
pauses, generally up to 10-15 seconds, without oxygen desaturation or cardiac changes.
4. What does each APGAR score mean?:
Answer:
>7 = normal
4-6 = low
<3 = critical
Nursing Practice - Maternal
Health - Galen
Actual Questions and Answers
100% Guarantee Pass
,This Exam contains:
Galen College Of Nursing Exam 4
100% Guarantee Pass.
Each Question Includes The Correct
Answer
Expert-Verified explanation
, NSG 3500 EXAM 4
What are the 4 factors that influence initiation of the first breath?:
Answer:
- Chemical factors (hypercarbia, acidosis, hypoxia)
- Sensory factors (stimuli such as noise, light, touch)
- Thermal factors (sudden temperature change)
- Mechanical factors (thoracic squeeze during birth clears lung fluid)
Explanation: These factors collectively stimulate the newborn’s respiratory center to initiate and maintain
effective breathing at birth.
2. Why does hypoxia, hypercarbia, and acidosis trigger respirations?:
Answer:
- Hypoxia lowers blood oxygen (PO2) levels and pH, indicating oxygen deficiency.
- Carbon dioxide (PCO2) levels rise, stimulating the respiratory center in the medulla to increase respiratory
effort.
Explanation: The medullary respiratory center responds to elevated CO2 and lowered O2/pH by triggering
spontaneous breathing to oxygenate the blood and remove excess CO2, essential for neonatal adaptation.
3. Periodic breathing in a newborn is not usually associated with any change in skin color or HR.
How long are these pauses?:
Answer: 5-15 seconds
Explanation: Periodic breathing is a benign, immature breathing pattern in newborns involving brief
pauses, generally up to 10-15 seconds, without oxygen desaturation or cardiac changes.
4. What does each APGAR score mean?:
Answer:
>7 = normal
4-6 = low
<3 = critical
