Author Question: Which is a precursor to a pulmonary embolism? a. Elevated white blood cell count b. Deep ... (Read 29 times)

asd123 · **on:** Jul 18, 2018

Which is a precursor to a pulmonary embolism?

a. Elevated white blood cell count
b. Deep breathing exercises
c. A long surgical procedure
d. Normothermia

Question 2

Which is a treatment used to reverse hypotension?

a. Increased use of anesthetics
b. Elevation of legs
c. Increased positive airway pressure
d. Beta-blocker drugs

ankilker · **Reply #1 on:** Jul 18, 2018

Answer to Question 1

ANS: C
A long surgical procedure or if the patient's knees have been raised can predispose the patient to a pulmonary embolism. Some other precursors to a pulmonary embolism include obesity, dehydration, congestive heart failure, and atrial fibrillation. Local trauma to a vein or venous disease enhances the chance of thrombus formation. Hypercoagulability may coexist with conditions such as pregnancy, fever, myocardial infarction, and some malignancies and after abrupt cessation of anticoagulant therapy.

Answer to Question 2

ANS: B
Supportive measures used to treat hypotension include elevating the legs to increase blood pressure by draining pooled blood, especially after sympathetic blockade; breathing in oxygen by mask to assist in respiration; and rapid IV fluid therapy to increase blood volume.