EGAN’S FUNDAMENTALS OF RESPIRATORY
CARE EXAM SCRIPT 2026 COMPLETE
QUESTIONS AND ANSWERS
◉ A 70-kg male patient has a VCO2 of 200 ml/min and a VA of 9
L/min. From this information, what can you infer? Answer: The
patient will have a lower than normal PACO2.
◉ What is the primary determinant of the PAO2? Answer: PO2 in the
inspired gas
◉ A normal person breathing 100% oxygen at sea level would have
PAO2 of about what level? Answer: 670 mm Hg
◉ What is the highest PAO2 one could expect to observe in an
individual breathing room air at sea level? Answer: 110 to 120 mm
Hg
◉ When is the rate of gaseous diffusion across a biological
membrane decreased? Answer: The partial pressure gradient is low.
,◉ What is the primary factor that maintains the pressure gradient
that drives oxygen from the capillaries into the interstitial spaces
and into the cells? Answer: cellular consumption of oxygen
◉ What occurs in the bases of the upright lung? Answer: The V/Q is
lower than the average.
◉ If the total hemoglobin content (Hb + HbO2) of a sample of blood
is 20 g/dl and the oxyhemoglobin (HbO2) content is 15 g/dl, what is
the HbO2 saturation? Answer: 75%
◉ At a PaO2 of 65 mm Hg, what is the approximate saturation of Hb
with oxygen? Answer: 80%
◉ What is the approximate normal CaO2 - Cmc013-1.jpgO2 in a
healthy adult at rest? Answer: 5 ml/dl
◉ According to the Fick principle, if oxygen consumption remains
constant, an increase in cardiac output will manifest itself as which
of the following? Answer: decrease in the CaO2
◉ What role does the Bohr effect play in oxygen transport? Answer:
enhances oxygen delivery to tissues and oxygen pickup at lungs
,◉ A patient has a P50 value of 29 mm Hg. What does this indicate?
Answer: decreased affinity of Hb for oxygen
◉ Which of the following statements is true regarding the Haldane
effect? Answer: At high SaO2 levels, the capacity of blood to hold
carbon dioxide decreases.
◉ Which of the following equations best describes oxygen delivery
to the tissues? Answer: arterial oxygen content ´ cardiac output
◉ A patient with a normal PaO2 and cardiac output is exhibiting
signs and symptoms of tissue hypoxia. What is the most likely cause?
Answer: hemoglobin deficiency
◉ What is a uniform distribution of large molecules that attract and
hold water? Answer: colloid
◉ Gas transport in the body is most affected by changes in which of
the following variables? Answer: ambient pressure.
◉ A solution holding the maximum amount of solute in a given
volume at a constant temperature is said to be what? Answer:
saturated
, ◉ The most important physiological characteristic of solutions is
their ability to exert pressure. Answer: true
◉ Which of the following is true regarding osmotic pressure?
Answer: Osmotic pressure depends on the number of particles in
solution.
◉ Which of the following is an isotonic solution? Answer: 0.90%
NaCl
◉ Positive ions are referred to as what? Answer: cations
◉ What is the gEq weight of an acid? Answer: amount of the acid
containing 1 mol of replaceable H+ ions
◉ What type of solution could have 1 gEq of solute per L of solution?
Answer: normal
◉ You add 50 ml of water to 150 ml of a 6% solution. What is the
new concentration? Answer: 4.5%
◉ What is a characteristic of an acid? Answer: is a proton donor
CARE EXAM SCRIPT 2026 COMPLETE
QUESTIONS AND ANSWERS
◉ A 70-kg male patient has a VCO2 of 200 ml/min and a VA of 9
L/min. From this information, what can you infer? Answer: The
patient will have a lower than normal PACO2.
◉ What is the primary determinant of the PAO2? Answer: PO2 in the
inspired gas
◉ A normal person breathing 100% oxygen at sea level would have
PAO2 of about what level? Answer: 670 mm Hg
◉ What is the highest PAO2 one could expect to observe in an
individual breathing room air at sea level? Answer: 110 to 120 mm
Hg
◉ When is the rate of gaseous diffusion across a biological
membrane decreased? Answer: The partial pressure gradient is low.
,◉ What is the primary factor that maintains the pressure gradient
that drives oxygen from the capillaries into the interstitial spaces
and into the cells? Answer: cellular consumption of oxygen
◉ What occurs in the bases of the upright lung? Answer: The V/Q is
lower than the average.
◉ If the total hemoglobin content (Hb + HbO2) of a sample of blood
is 20 g/dl and the oxyhemoglobin (HbO2) content is 15 g/dl, what is
the HbO2 saturation? Answer: 75%
◉ At a PaO2 of 65 mm Hg, what is the approximate saturation of Hb
with oxygen? Answer: 80%
◉ What is the approximate normal CaO2 - Cmc013-1.jpgO2 in a
healthy adult at rest? Answer: 5 ml/dl
◉ According to the Fick principle, if oxygen consumption remains
constant, an increase in cardiac output will manifest itself as which
of the following? Answer: decrease in the CaO2
◉ What role does the Bohr effect play in oxygen transport? Answer:
enhances oxygen delivery to tissues and oxygen pickup at lungs
,◉ A patient has a P50 value of 29 mm Hg. What does this indicate?
Answer: decreased affinity of Hb for oxygen
◉ Which of the following statements is true regarding the Haldane
effect? Answer: At high SaO2 levels, the capacity of blood to hold
carbon dioxide decreases.
◉ Which of the following equations best describes oxygen delivery
to the tissues? Answer: arterial oxygen content ´ cardiac output
◉ A patient with a normal PaO2 and cardiac output is exhibiting
signs and symptoms of tissue hypoxia. What is the most likely cause?
Answer: hemoglobin deficiency
◉ What is a uniform distribution of large molecules that attract and
hold water? Answer: colloid
◉ Gas transport in the body is most affected by changes in which of
the following variables? Answer: ambient pressure.
◉ A solution holding the maximum amount of solute in a given
volume at a constant temperature is said to be what? Answer:
saturated
, ◉ The most important physiological characteristic of solutions is
their ability to exert pressure. Answer: true
◉ Which of the following is true regarding osmotic pressure?
Answer: Osmotic pressure depends on the number of particles in
solution.
◉ Which of the following is an isotonic solution? Answer: 0.90%
NaCl
◉ Positive ions are referred to as what? Answer: cations
◉ What is the gEq weight of an acid? Answer: amount of the acid
containing 1 mol of replaceable H+ ions
◉ What type of solution could have 1 gEq of solute per L of solution?
Answer: normal
◉ You add 50 ml of water to 150 ml of a 6% solution. What is the
new concentration? Answer: 4.5%
◉ What is a characteristic of an acid? Answer: is a proton donor
