nursing

Question 1
Insulin is used to treat hyperkalemia because it:
stimulates sodium to be removed from the cell in exchange for potassium.
binds to potassium to remove it through the kidneys.
transports potassium from the blood to the cell along with glucose.
breaks down the chemical components of potassium, causing it to be no longer effective.
Question 2
What is the central component of the pathogenic model of multiple sclerosis?
Myelination of nerve fibers in the peripheral nervous system (PNS)
Demyelination of nerve fibers in the CNS
Development of neurofibrillary tangles in the CNS
Inherited autosomal dominant trait with high penetrance
Question 3
Which of the following ICU sedatives should not be used for greater than 24 hours per the FDA-approved labeling?
Midazolam (Versed)
Diazepam (Valium)
Dexmedetomidine (Precedex)
Propofol (Diprivan)
Question 4
What type of necrosis is associated with wet gangrene?
Coagulative
Liquefactive
Caseous
Coagulative
Question 5
In the absence of susceptibility data for an acute infection, the choice of an antimicrobial drug is mostly influenced by
the site of infection and the patient’s history.
the sensitivity report and the colony count.
the source of the infection and the color of exudate.
the host defense mechanism and the immune response.
Question 6
Which statement best describes cystic fibrosis?
Obstructive airway disease characterized by reversible airflow obstruction, bronchial hyperreactivity, and inflammation.
Respiratory disease characterized by severe hypoxemia, decreased pulmonary compliance, and diffuse densities on chest x-ray imaging.