NSG 170 - Gas Exchange & Perfusion Review Questions and Correct Answers
9 views 0 purchase
Course
NSG 170
Institution
NSG 170
Which side of the heart pumps blood through the lungs to the pulmonary circulation? Right side
Which side of the heart pumps blood to all of the body tissues through systemic circulation? Left side
What is the main function of the circulatory system? Transport -- also helps regulate temperature
...
NSG 170 - Gas Exchange & Perfusion
Review Questions and Correct Answers
Which side of the heart pumps blood through the lungs to the pulmonary circulation?
✅Right side
Which side of the heart pumps blood to all of the body tissues through systemic
circulation? ✅Left side
What is the main function of the circulatory system? ✅Transport -- also helps regulate
temperature
What is Laplace Law? ✅States that wall tension becomes greater as the radius
increases & that wall tension is also affected by wall thickness -increases as wall
becomes thinner, decreases as wall becomes thicker
What is the main vein of the heart? ✅Vena Cava
Preload vs. After-load ✅Preload: volume of blood pumped out
After-load: pressure it takes to pump blood out of the heart
Which hormone controls blood pressure? ✅Norepinephrine
The _______ are known as the exchange system. ✅Capillaries
What is the primary function of RBCs? ✅To carry oxygen to the body's tissues;
hemoglobin - oxygen carrying protein
What is hematopoiesis? ✅The production of blood cells.
What is a complete blood count (CBC)? ✅Lab test determining # of RBC, WBC, and
thrombocytes per unit of blood.
How many gallons of blood does the heart move throughout the body in a day? ✅Over
1,800 gallons
What are the 3 layers of the heart? ✅Epicardium - lines pericardial cavity
Myocardium - muscle layer forming walls of atria/ventricles
Endocardium - lines chambers of the heart
Atrium vs. Ventricles ✅Atrium - reservoir for blood coming into heart
Ventricles - pumps blood out of the heart
, What is a continuous wave doppler ultrasound? ✅Handheld ultrasound device
detecting blood flow
What is arteriosclerosis? ✅Hardening of the arteries - small arteries/arterioles
What is atherosclerosis? ✅Plaque build up - large/medium-sized arteries
What is claudication and what is it associated with? ✅Pain in the legs induced by
exercise that is relieved by rest; a sign of peripheral artery disease
What are some pharmacologic therapies for PAD? ✅Anti-platelet agents (aspirin,
clopidogrel)
Statins -- lower cholesterol
Phosphodiesterase III inhibitor (Cilostazol) -- improve circulation, lower BP
What is an arterial aneurysm? What are the most common forms? ✅-A localized sac
formed at weak point in artery wall.
-Most common forms: Saccular (only one side of vessel) & Fusiform (dilation of entire
arterial segment)
PAD vs. PVD? Complications? ✅PVD: affects venous return to the heart; deep vein
thrombosis, thrombophlebitis, varicose veins, chronic venous insufficiency
PAD: affects oxygenated blood carried to extremities; atherosclerosis, progressive
narrowing of lower extremity arteries -- decreased blood flow to limbs
Venous ulcers vs. Arterial ulcers ✅Venous: located on leg, irregular borders, shallow,
extremely tender
Arterial: located on toes or pressure points, pale/cyanotic in appearance, surrounding
skin shiny/taut
What is a venous thromboembolism? Risk factors? ✅Blood clot in a vein
Risk: older then 65, surgery, central venous catheter placement, septicemia, pregnancy
What is cellulitis? S/S? Tx? ✅Bacterial skin infection
S/S: localized swelling, redness, fever, chills, sweating
Tx: oral or IV antibiotics based on severity, elevate affected area, warm/moist packs to
site q2-4hrs.
Pulmonary vs. Systemic circulation ✅Pulmonary: moves blood through lungs
Systemic: supplies all other tissues of the body
Arterial vs. Venous blood pressure ✅Arterial: higher pressure, 90-100 mm Hg, propels
blood to all other tissues of the body (systemic)
Venous: lower pressure, 12 mm Hg, propels blood through the lungs (pulmonary)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller twishfrancis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
