Author Question: A 44-year-old female has been diagnosed with major depression. Which of the following neuroimaging ... (Read 34 times)

Collmarie · **on:** Jun 25, 2018

A 44-year-old female has been diagnosed with major depression. Which of the following neuroimaging findings is most congruent with the woman's diagnosis?

A)
Decreased brain activity in the pons and brain stem
B)
Reduced activity and gray matter volume in the prefrontal cortex
C)
Atrophy and decreased blood flow in the amygdala
D)
Enlargement of the lateral and third ventricles and reduction in frontal and temporal volumes

Question 2

While working at the triage desk in the local emergency department, which of the following patients is likely having a medical emergency and needs to be seen first?

A)
A 17-year-old high school student who has a red, itchy eye
B)
A 55-year-old truck driver complaining of sudden onset of ocular pain and blurred vision
C)
A 45-year-old school teacher complaining of a red eye that is draining yellow secretions
D)
An infant with red eyes who is irritable and refusing to eat

mohan · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

Ans:
B

Feedback:

In some cases of familial major depressive disorder and bipolar disorder, PET and MRI studies have demonstrated a reduction in the volume of gray matter in the prefrontal cortex, with an associated decrease in activity in the region. Brain stem involvement is not common, and the amygdala tends to have increased blood flow and oxygen consumption during depression. Enlargement of the lateral and third ventricles and reduction in frontal and temporal volumes are associated with schizophrenia.

Answer to Question 2

Ans:
B

Feedback:

Attacks of increased intraocular pressure are manifested by ocular pain and blurred vision caused by corneal edema. Acute angle-closure glaucoma is an ophthalmic emergency. Treatment is directed at reducing the intraocular pressure, usually with pharmacologic agents.