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Cpap Exam 4 Questions And Accurate Answers
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Cpap Exam 4 Questions And Accurate AnswersOxygen is transported in the blood in two forms, what are they?
as dissolved oxygen in the blood plasma,
chemically combined with the hemoglobin (Hb) that is contained in the erythrocytes or
red blood cells
Define P50
P50 is the partial pressure at which the hemoglobin is 50 percent saturated with oxygen
What is the "normal" range for P50
26.6 or 27 torr
What does H&H stand for?
hemoglobin and hematocrit
When H&H is high the patient is experiencing
Polycythemia
When H&H is low the patient is experiencing
Anemia
What is the normal H&H range for men an women
45% men, 42% women
What is a common finding for an ABG for a person in acute ventilatory failure?
also called acute respiratory acidosis, is a medical emergency! ABG confirms the
immediate need to provide this patient with mechanical ventilation
How does the Respiratory system respond to the pH
Acts within one to three minutes
How does the respiratory system alter the pH
increases breathing depth and/or rate to decrease acidosis
decreases breathing depth and rate to offset alkalosis and lower pH- not too efficient at
this
, What are characteristics of bases
bitter taste, slippery, formula starts with "OH"
Do not dissociate completely in solution, and have much smaller effect on pH
What are some examples of bases
cleaning products are commonly bases for example: Baking soda; Ammonia NH3;
Sodium Hydroxide NaOH
Normal arterial pH range
7.35-7.45
Normal arterial PCO2 range
35-45 mmHg
Normal arterial HCO3 range
22-28 mEq/L
Normal arterial PO2 range
80-100 torr (PaO2)
Normal venous pH range
7.35-7.45
Normal venous PCO2 range
35-45 mmHg
Normal venous HCO3 range
22-26 mEq/L
Normal venous PO2 range
35-45 torr (PaO2)
What is a shunt?
perfusion without ventilation
Formula for Total oxygen content
(Hb x 1.34 x saO2 ) + (PaO2 x 0.003)
Formula for Total venous oxygen content
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