NUR 240 review questions Flashcards
Which ventilation–perfusion ratio is exhibited in a client diagnosed with a pulmonary embolus?
Low ventilation–perfusion ratio
Dead space
Silent unit
Normal perfusion-to-ventilation ratio
dead space
what is the goal of a vasodilator in a hypertensive crisis
25% BP reduction in the 1st hour
what is an example of an ethical dilemma
performing CPR on a patient with a DNR
protection and support of another rights
advocacy
what is the purpose of an ethics committee
hemorrhage symptoms
sudden severe headache, weakness/tingling in the arms and legs, changes in vision and balance, difficult speaking
the patient lost 400 mL in surgery and received 300mL and 0.9% saline. they are now hypotensive. what takes priority?
blood aministration
restoring circulatory volume
ecg to check circulatory status
return to surgery to check for internal bleeding
restoring circulatory volume
breach of duty example
failure to communicate a change in patients condition
crowing sound (Stridor)
continuous, high-pitched, crowing sound heard predominantly on inspiration
cause of this sound is partial obstruction of the larynx or trachea.
Stridor may be heard in conditions such as croup and foreign body obstruction
electrolyte responsible for regulating the volume of body fluids
sodium
cross linkage
chemical reaction produces damage to the DNA and cell death
free radicals
molecules with separated high-energy electrons have adverse effects on adjacent molecules
Which theory of aging focuses primarily on cell metabolism and function?
A. Genetic theory
B. Immunity theory
C. Cross-linkage theory
D. Free radical theory
free radical theory
The focus of the free radical theory is the free radicals formed during cellular metabolism that have adverse effects on adjacent molecules.
a patient is suffering from excessive edema. which fluid would you expect to be ordered?
5% saline
what is the most accurate indicator of kidney function
creatinine (and BUN)
