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NURS 6902 Thoracic A/P, Cardiac Pharm, CIED, Hemodynamics Exam

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NURS 6902 Thoracic A/P, Cardiac Pharm, CIED, Hemodynamics Exam...

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  • August 8, 2024
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NURS 6902 Thoracic A/P, Cardiac Pharm, CIED,
Hemodynamics Exam


What law best discusses airway resistance? - ANSWER Poiseulle's Law

R = 8NL / (Pi x radius^4)

What is Reynold's number? - ANSWER predicts whether the flow is laminar or
turbulent

What would Reynold's number for laminar flow be? - ANSWER <2000

What would a Reyonld's number for turbulent flow be? - ANSWER >4000

What is static compliance? - ANSWER This is the pressure of the lung when a
known volume is inhaled and held (no airflow)

-Takes only into account alveolar compliance

What is the equation for static compliance? - ANSWER Cs = TV / (Plateau
pressure - PEEP)

What is normal static compliance? - ANSWER 50-60 mL/ cm H2O

What is dynamic compliance? - ANSWER · Measured during normal tidal
breathing (it takes into account for the airways and the lungs)

What is the equation for dynamic compliance? - ANSWER Dynamic compliance =
TV / (Peak inspiratory pressure - PEEP)

What is normal dynamic compliance? - ANSWER 200

What is the oxygen dissociation curve? - ANSWER A curve that represents where
50% of hemoglobin is saturated w/ O2 at different O2 pressures

- If curves shift to the left, hemoglobin wants to hold onto oxygen (higher affinity)

- If the curve shifts to the right, it will release oxygen more easily

- The shift is influenced by pH, temperature, PaCO2, and 2,3 DPG

, What are the factors that shift the O2 dissociation curve to the left? - ANSWER 1.
Decreased 2,3 DPG

2. Hypothermia

3. Decreased metabolism

4. Alkalosis

What are the factors that shift the O2 dissociation curve to the right? - ANSWER 1.
Increased 2,3 DPG

2. Acidosis

3. Hypercarbia

4. Hyperthermia

What is West Zone 1 in the lateral position? - ANSWER Zone 1: Nondependent
lung (upper portion)

What is West Zone 2 in the lateral position? - ANSWER Zone 2: Lower portion of
the non-dependent lung, upper portion of the dependent lung

What is West Zone 3 in the lateral position? - ANSWER Zone 3: Lower 2/3 of the
dependent lung

What is the anatomical structure of the R mainstem? - ANSWER 1. Shorter, ~ 2.5
cm

2. Larger diameter

3. Less of an angle (25 degrees)

4. Easier to maintain!

What is the anatomical structure of the L mainstem? - ANSWER 1. Longer, ~ 5 cm

2. 45 degree angle

How can you oxygenation in OLV? - ANSWER · CPAP for the lung that is not
getting ventilated (most effective way to ventilate one-lung)

· Confirm tube placement

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