Patho: Venous issues, Htn and hypotension (Week 7)

Which of the following factors contribute to hypovolemia

• prolonged bed rest

• excessive sweating

• reduction of diueretics

• GI issues

A pt is noted to have a small spherical vessel at the bifurcation in their circle of Willis. What type of Anyerism do they likely have?

• Berry

• Willis

• Fusiform

• Saccular

• Dissecting

Which of the following correctly discusses laplace's law in regards to an anyerism?

• Localized constriction causes increased tension

• Localized dialation leads to increased tension

• Increased pressure leads to decreased volume

• decreased pressure leads to a decreased volume

What is a characteristic of a fusiform aneurysm

• characterized by a gradual and progressive enlargement of the aorta

• sac like substance that extends part of the vessel

• encompasses the entire circumference of the vessel

• found in the circle of Willis

• life threatening condition

Which of the following is NOT associated with Virchow's Triad

• Stasis of blood

• Increase of blood coagulability

• Vessel wall injury

• decrease of inflammation

Which of the following conditions put a pt at risk for a DVT in relation to Virchow's Triad

• a pt on bed rest

• surgery

• laminar flow

• decrease of clotting factors

• childbirth

Answer explanation

Childbirth increases hormones which increases clotting factors increasing the risk of a DVT

If a pt has incompetent venous valves, what would be an expected finding?

• pallor in the legs

• little drainage

• rubor

• smooth wounds

Which of the following risk factors are associated with venous stasis

• dehydration

• spinal chord injury

• Acute MI

• Orthopedic Surgery

• being on birth control

Answer explanation

While all answer choices are associated with an increased risk of getting a DVT, venous stasis is specifically related to factors that increase the stagnation of blood or are evidenced by the heart's inability to function as a pump resulting in a backflow

Which of the following are ways to prevent a DVT

• Dopplar study confirmed with a Homan's Sign

• rest

• massaging the leg to move the thrombus

• heparin

Which of the following does NOT describe a mechanic of bloodflow

• venous pressure is greater than arterial pressure

• arterial pressure less than surrounding vessel

• external pressure promotes blodflow to an area

• arterial pressure is NOT greater than the pressure of the surroundings

Answer explanation

External pressure cuts off blodflow to an area