MPP Exam 4 Questions With Complete Solutions
-Changes in K+ plasma reflect Correct Answers -changes in
K+ in body
-shifts of K+ in or out of intracellular pool
-any shift of K+ in or out of intracellular pool depends on what
is happening with hydrogenions, cells contain bulk of K+
-even small changes in K+ plasma can have profound effects on
cellular function, still an important role for renal control of K+
4 Steps of Respiration and Oxygen Delivery Correct Answers -
air is moved into and out of the lungs whereby fresh air moves
into the small terminal air sacs in the lungs (alveoli) and used air
moves from the alveoli to the environment
-oxygen (O2) and carbon dioxide (CO2) are exchanged between
the alveoli and the blood within the pulmonary capillaries by
diffusion
-O2 and CO2 are transported by the blood between the lungs
and the tissues
-Exchange of O2 and CO2 takes place between the tissues and
the blood via diffusion across the systemic tissue capillaries
98.5% total oxygen in blood is Correct Answers -bound to
hemoglobin
-when oxygen is high the attraction between hemoglobin and O2
is high
-oxygen is stuck on hemoglobin and travels al the way through
arterial side to tissue capillaries
,A decrease in PO2 in a pulmonary capillary bed will result in
vasoconstriction of the arterioles that control blood flow to those
pulmonary capillaries. Correct Answers true
A decrease in the affinity of binding between oxygen and
hemoglobin indicates a patient must have decreased O2 delivery
to their cells Correct Answers -false, a decrease in affinity most
likely indicates less binding of oxygen to hemoglobin in the
arterial blood, however, unloading of oxygen in the tissue
capillaries may be enhanced
A decrease in the affinity of binding between oxygen and
hemoglobin indicates a patient must have decreased O2 delivery
to their cells. Correct Answers false
a healthy person living on the coast at sea level attempts to
climb to a mountain peak at 14,000 feet, which of the following
changes are expected Correct Answers -increased respiratory
rate
-a lower pulse oximeter reading because of a reduction in the
arterial PO2
-increased firing of the chemoreceptors
A healthy person living on the coast at sea level attempts to
climb to a mountain peak at 14,000 feet, which of the following
changes are expected?
Increased firing of the chemoreceptors.
Increased respiratory rate
,A lower pulse oximeter reading because of a reduction in the
arterial PO2.
Decreased hematocrit levels due to chronic hypoxia.
Decreased respiratory rate
The alveoli PO2 decreases because of lower total O2
composition (< 21%) in air at high altitude.
Decreased 2,3 BPG levels which will cause a rightward shift of
oxygen-hemoglobin dissociation curve to facilitate O2 loading
hemoglobin. Correct Answers Increased firing of the
chemoreceptors.
Increased respiratory rate
A lower pulse oximeter reading because of a reduction in the
arterial PO2.
A healthy young man living on the coast at sea level attempts to
climb to a mountain peak at 14,000 feet, which of the following
changes are expected?
Decreased 2,3 BPG levels which will cause a rightward shift of
oxygen-hemoglobin dissociation curve to facilitate O2 loading
hemoglobin.
Increased respiratory rate
, A lower pulse oximeter reading because of a reduction in the
arterial PO2.
Decreased hemoglobin/hematocrit due to chronic hypoxia.
The alveoli PO2 decreases because of lower total O2
composition (< 21%) in air at high altitude.
Increased firing of the peripheral chemoreceptors.
Decreased respiratory rate Correct Answers Increased firing of
the peripheral chemoreceptors.
Increased respiratory rate
A lower pulse oximeter reading because of a reduction in the
arterial PO2.
A leftward shift in the O2-hemoglobin saturation curve indicates
an (increase or a decrease) in the affinity of binding between
oxygen and hemoglobin. A rightward shift in the O2-
hemoglobin saturation curve indicates an (increase or a
decrease) in the affinity of binding between oxygen and
hemoglobin Correct Answers -increase
-decrease
A leftward shift in the O2-hemoglobin saturation curve indicates
an increase or a decrease Decrease in the affinity of binding
between oxygen and hemoglobin. A rightward shift in the O2-
hemoglobin saturation curve indicates an increase or a decrease
Increase in the affinity of binding between oxygen and
hemoglobin. Correct Answers increase
-Changes in K+ plasma reflect Correct Answers -changes in
K+ in body
-shifts of K+ in or out of intracellular pool
-any shift of K+ in or out of intracellular pool depends on what
is happening with hydrogenions, cells contain bulk of K+
-even small changes in K+ plasma can have profound effects on
cellular function, still an important role for renal control of K+
4 Steps of Respiration and Oxygen Delivery Correct Answers -
air is moved into and out of the lungs whereby fresh air moves
into the small terminal air sacs in the lungs (alveoli) and used air
moves from the alveoli to the environment
-oxygen (O2) and carbon dioxide (CO2) are exchanged between
the alveoli and the blood within the pulmonary capillaries by
diffusion
-O2 and CO2 are transported by the blood between the lungs
and the tissues
-Exchange of O2 and CO2 takes place between the tissues and
the blood via diffusion across the systemic tissue capillaries
98.5% total oxygen in blood is Correct Answers -bound to
hemoglobin
-when oxygen is high the attraction between hemoglobin and O2
is high
-oxygen is stuck on hemoglobin and travels al the way through
arterial side to tissue capillaries
,A decrease in PO2 in a pulmonary capillary bed will result in
vasoconstriction of the arterioles that control blood flow to those
pulmonary capillaries. Correct Answers true
A decrease in the affinity of binding between oxygen and
hemoglobin indicates a patient must have decreased O2 delivery
to their cells Correct Answers -false, a decrease in affinity most
likely indicates less binding of oxygen to hemoglobin in the
arterial blood, however, unloading of oxygen in the tissue
capillaries may be enhanced
A decrease in the affinity of binding between oxygen and
hemoglobin indicates a patient must have decreased O2 delivery
to their cells. Correct Answers false
a healthy person living on the coast at sea level attempts to
climb to a mountain peak at 14,000 feet, which of the following
changes are expected Correct Answers -increased respiratory
rate
-a lower pulse oximeter reading because of a reduction in the
arterial PO2
-increased firing of the chemoreceptors
A healthy person living on the coast at sea level attempts to
climb to a mountain peak at 14,000 feet, which of the following
changes are expected?
Increased firing of the chemoreceptors.
Increased respiratory rate
,A lower pulse oximeter reading because of a reduction in the
arterial PO2.
Decreased hematocrit levels due to chronic hypoxia.
Decreased respiratory rate
The alveoli PO2 decreases because of lower total O2
composition (< 21%) in air at high altitude.
Decreased 2,3 BPG levels which will cause a rightward shift of
oxygen-hemoglobin dissociation curve to facilitate O2 loading
hemoglobin. Correct Answers Increased firing of the
chemoreceptors.
Increased respiratory rate
A lower pulse oximeter reading because of a reduction in the
arterial PO2.
A healthy young man living on the coast at sea level attempts to
climb to a mountain peak at 14,000 feet, which of the following
changes are expected?
Decreased 2,3 BPG levels which will cause a rightward shift of
oxygen-hemoglobin dissociation curve to facilitate O2 loading
hemoglobin.
Increased respiratory rate
, A lower pulse oximeter reading because of a reduction in the
arterial PO2.
Decreased hemoglobin/hematocrit due to chronic hypoxia.
The alveoli PO2 decreases because of lower total O2
composition (< 21%) in air at high altitude.
Increased firing of the peripheral chemoreceptors.
Decreased respiratory rate Correct Answers Increased firing of
the peripheral chemoreceptors.
Increased respiratory rate
A lower pulse oximeter reading because of a reduction in the
arterial PO2.
A leftward shift in the O2-hemoglobin saturation curve indicates
an (increase or a decrease) in the affinity of binding between
oxygen and hemoglobin. A rightward shift in the O2-
hemoglobin saturation curve indicates an (increase or a
decrease) in the affinity of binding between oxygen and
hemoglobin Correct Answers -increase
-decrease
A leftward shift in the O2-hemoglobin saturation curve indicates
an increase or a decrease Decrease in the affinity of binding
between oxygen and hemoglobin. A rightward shift in the O2-
hemoglobin saturation curve indicates an increase or a decrease
Increase in the affinity of binding between oxygen and
hemoglobin. Correct Answers increase
