Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
The location of the blood-brain barrier is considered to be:
A. At the level of glia
At the level of glia: This is not where the blood-brain barrier is located. Glia arenon-neuronal cells in the central nervous system that provide support and protection for neurons.
B. At the level of neurons
At the level of neurons: This is not where the blood-brain barrier is located. Neurons are specialized cells in the nervous system that transmit information through electrical and chemical signals.
C. At the level of the brain capillaries
At the level of the brain capillaries: This is where the blood-brain barrier is located. The blood-brain wall is a highly selective semipermeable border of endothelial cells that prevents solutes in the circulating blood from non-selectively crossing into the extracellular fluid of the central nervous system where neurons reside.
D. At the level of dendrites
At the level of dendrites: This is not where the blood-brain barrier is located. Dendrites are branched projections of a neuron that receive signals from other neurons.
E. Correct answer is B,
This question is an excerpt from Nurse Dive's nursing test bank - Patho Proctored Exam 4 Summer 23. Take the full exam now
Similar Questions
Which of the following describes decerebrate posturing?
A. Internal rotation and adduction of arms with flexion of elbows, wrists, and fingers
Internal rotation and adduction of arms with flexion of elbows, wrists, and fingers: This describes decorticate posturing, which is another type of abnormal body posture that can occur due to severe brain damage. It is different from decerebrate posturing.
B. Back hunched over, rigid flexion of all four extremities with supination of arms and plantar flexion of the feet
Back hunched over, rigid flexion of all four extremities with supination of arms and plantar flexion of the feet: This does not describe decerebrate posturing.
C. Back arched: rigid extension of all four extremities
Back arched: rigid extension of all four extremities: This describes decerebrate posturing, which involves the arms and legs being held straight out, the toes being pointed downward, and the head and neck being arched backward.
D. Supination of arms, dorsiflexion of feet
Supination of arms, dorsiflexion of feet: This does not describe decerebrate posturing.
Parasomnias are unusual behaviors occurring during sleep which behavior is not parasomnias?
A. restless leg syndrome.
Restless leg syndrome: This is considered a parasomnia. Restless leg syndrome is a sleep-related movement disorder that causes an irresistible urge to move the legs, often accompanied by uncomfortable sensations.
B. night terrors
Night terrors: This is considered a parasomnia. Night terrors are episodes of intense fear, screaming, and thrashing during sleep, often accompanied by sleepwalking.
C. sleepwalking
Sleepwalking: This is considered a parasomnia. Sleepwalking is a disorder that causes people to get up and walk around while they are still asleep.
D. Unstable sleep hygiene
Unstable sleep hygiene: This is not considered a parasomnia. Sleep hygiene refers to habits and practices that promote good sleep, such as maintaining a regular sleep schedule and creating a comfortable sleep environment
How does fluid accumulate in the middle ear during otitis media?
A. Fluid accumulates in the middle ear as blood vessels become increasingly permeable in response to chemical mediators of inflammation
Fluid accumulates in the middle ear as blood vessels become increasingly permeable in response to chemical mediators of inflammation: This is correct. During otitis media, inflammation can cause blood vessels to become more permeable, allowing fluid to accumulate in the middle ear.
B. Fluid accumulates in the middle ear as blood vessels become semi-permeable in response to chemical mediators of inflammation
Fluid accumulates in the middle ear as blood vessels become semi-permeable in response to chemical mediators of inflammation: This is not correct. Blood vessels do not become semi-permeable in response to chemical mediators of inflammation.
C. Fluid accumulates in the outer ear as blood vessels become increasingly permeable in response to chemical mediators of inflammation
Fluid accumulates in the outer ear as blood vessels become increasingly permeable in response to chemical mediators of inflammation: This is not correct. Fluid accumulation during otitis media occurs in the middle ear, not the outer ear.
D. Fluid accumulates in the tympanic membrane as blood vessels become increasingly permeable in response to chemical mediators of inflammation
Fluid accumulates in the tympanic membrane as blood vessels become increasingly permeable in response to chemical mediators of inflammation: This is not correct. Fluid accumulation during otitis media occurs behind the tympanic membrane (eardrum), not in it.