Pathophysiology questions
and answers nursing exam
review and study guide
Description
This document contains pathophysiology questions and answers designed to reinforce understanding of
disease mechanisms and physiological alterations in the body. It covers core topics such as cellular injury,
inflammation, immune responses, fluid balance, and systemic disease processes.
The material is intended to support nursing and health science exam preparation through practice-based
learning and concept review.
Pathophysiology
# Question Correct Answer
1 tension pneumothorax 1)clinical diagnoses 2)In a chronic condition,
airways don't re-expand spontaneously because
of scarring
2 Underventilation lung due to 1)susceptible to puncture 2)hypotensive
pressure from mechanical 3)tachycardic 4)hypoxic 5)code
ventilation
3 PCO2 of 100 in a COPDer Patients can have PCO2's of up to 100, and, as
long as they crept up slowly, can still be talking
4 PaO2 tension of oxygen in an arterial blood gas sample
5 advantages to the shape of the O2 1)In the physiologic range of 70-100, significant
dissociation curve changes in the arterial 02 do not affect the
oxygen saturation
6 PaO2 55-60 1)indications of giving the pt. oxygen to prevent
the complications of hypoxemia
7 Factors affecting the 1)Temperature 2)2,3 DPG 3)PCO2 4)ph
Oxyhemoglobin dissociation curve
, 8 Chronic hypoxemia and red blood 1\) stimulus goes out the kindeys to put out
cell production erythropoeitin 2)Eth. stimulates production of
RBC's
9 Anemia and PO2 and O2 Assuming the lungs are normal, the PO2 and O2
will be normal
10 Partial Pressure of O2 in the lungs As the O2 gets to gas exchange, it encounters
O2, and the partial pressure of O2 decreases
11 Before O2 gets to the systemic 1\) Some ventilation/perfusion inequalities
arteries 2)1-2% of the blood is shunted to the left side
without going through the lung, causing alveolar
and oxygen tensions to be different
12 Alveolar air equation Allows us to estimate PO2 in the alveolus