Oxygen Indices
Use the following information to compute the PAO2:
BP: 600
FiO2: 50%
PaCO2: 40 mm Hg
PaO2: 200 mm Hg (SaO2: 100%)
PvO2: 150 mm Hg (SvO2: 80%)
Hb: 9 g/dl
What is 226.5 mm Hg
Which of the following would likely be the best treatment for hypoxic hypoxia?
a. Packed RBCs
b. Medication to increase blood pressure
c. A fluid bolus
d. 100% oxygen via NRB
What is
d. 100% oxygen via NRB
Which of the following describes Transudative pleural fluid?
a. Thin, watery
b. Increased WBC's
c. Protein Rich
d. pH<7.30
What is
a. Thin, watery
The physician tells you that your patients lactate is critically elevated (4 mmol/L). You know that this is likely due to:
a. Diabetes
b. Sepsis
c. Kidney Failure
d. Allergies
What is b. Sepsis
Use the following information to compute the (A-a)O2:
BP: 600
FiO2: 50%
PaCO2: 40 mm Hg
PaO2: 200 mm Hg (SaO2: 100%)
PvO2: 150 mm Hg (SvO2: 80%)
Hb: 9 g/dl
26.5 mm Hg
Which of the following is considered a normal PaO2?
a. 80-100
b. 70-100
c. 70-90
d. 80-90
What is
a. 80-100
Which of the following could be a possible cause of a pleural effusion with transudative fluid?
a. Infection
b. Trauma
c. CHF
d. Cancer
What is
c. CHF
A patient in the ER is complaining of muscle twitching, seizures, and muscle cramps. A blood chemistry has been ordered. Which of the following values do you predict will be decreased, based on the patients symptoms?
a. Sodium
b. Potassium
c. Chloride
d. Bicarbonate
What is a. sodium
a. Oxygen Consumption (VO2)
b. Alveolar Oxygen (PAO2)
c. Total Oxygen Delivery (DO2)
d. (A-a)O2
c. Total Oxygen Delivery (DO2)
Based on the following information, what type of hypoxia does this patient most likely have?
PaCO2: 43 mm Hg
PaO2: 140 mm Hg (SaO2: 100%)
PvO2: 100 mm Hg (SvO2: 80%)
Hb: 7 g/dl
Anemic Hypoxia
Which of the following is NOT a cause of hypoxic hypoxia?
a. Hypoventilation
b. Anemia
c. Interstitial Fibrosis
d. High Altitude
What is
D. Anemia
What is the name of the procedure that is done to prevent the recurrence of pleural effusions and pneumothoraxes?
a. Pleurodesis
b. Thoracentesis
c. Flexible Bronchoscopy
d. Rigid Bronchoscopy
What is
a. Pleurodesis
Which of the following is NOT a gram-negative organism?
a. Staphylococcus
b. Pseudomonas Aeruginosa
c. Klebsiella
d. Haemophilus influenzae
What is a. Staphylococcus
Normally, the O2ER is:
What is 25%
A patient with a PaO2 of 65 mm Hg would have what severity of hypoxemia?
a. Normal
b. Mild
c. Moderate
d. Severy
What is Mild Hypoxemia
A patient that is in shock (severely decreased blood pressure) is being bagged with 100% oxygen. Labs show that the Hb 15 and the PaO2 is 150 mm Hg. Based on this information, what type of hypoxia is the patient likely suffering from?
What is Circulatory Hypoxia
How does the sclerosing agent used to prevent the recurrence of pleural effusions and pneumothoraxes work?
a. The agent causes increased WBC’s in the pleura
b. The agent causes the fluid to leak from the pulmonary capillaries
c. The agent breaks mucosal bonds in the pleura
d. The agent causes irritation and inflammation between the pleural layers
What is
d. The agent causes irritation and inflammation between the pleural layers
What percent of the normal white blood cell count are neutrophils?
What is 60-70%
Which of the following results are consistent for a patient with DECREASED cardiac output? a.SvO2 increases b.DO2 increases c.C(a-v) decreases d.O2ER increases
What is D (O2ER increases)
Calculate the CaO2:
Hb 14
PaO2 100
SaO2 95
What is 18.172 vol%
Based on the following information, what type of hypoxia does the patient most likely have?
PAO2: 120 mm Hg
PaO2: 100 mm Hg
SaO2: 100%
PvO2: 95 mm Hg
SvO2: 90%
What is Histotoxic Hypoxia
Which of the following are reasons for therapeutic bronchoscopy (select all that apply):
I. Secretion removal
II. Suspected foreign body
III. Bronchial lavage
IV. Stenosis widening
What is I, III, and IV
What is the normal white blood cell count?
What is 5,000-10,000 per mm3