MCQOPTIONS

Explore topic-wise MCQs in Biology.

This section includes 62 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

51.	A CSF shows opening pressure of 30 cm H2O , protein of 0.1, glucose of 2.0, WCC of 100, and no organisms on gram stain. Which type of meningitis does this fit with?
A.	Acute bacterial.
B.	Viral meningitis.
C.	Normal result.
D.	TB meningitis
E.	TB meningitis or partly treated bacterial meningitis.
Answer» F.

52.	Which statement is false regarding Bells Palsy?
A.	The use of steroids is well proven to decrease duration of illness
B.	Steroids are definitely not of use if the presentation is one week post symptom onset
C.	The feature that excludes it from an upper motor nerve lesion is the inability to furrow the forehead
D.	Other cranial nerves are always normal
E.	It involves the 7th cranial nerve
Answer» B. Steroids are definitely not of use if the presentation is one week post symptom onset

53.	What is NOT true of Guillian Barre Syndrome?
A.	frequently patients report an antecedent viral illness
B.	classical motor weakness is greater and earliest in the legs
C.	there is a lack of deep tendon reflexes
D.	there is peripheral sensory loss greater in the arms than the legs
E.	There may be autonomic disturbances
Answer» E. There may be autonomic disturbances

54.	Which of the drugs below is not known to cause an exacerbation of myasthenia gravis?
A.	prednisolone
B.	lignocaine
C.	chlorpromazine
D.	lithium
E.	penicillin
Answer» F.

55.	Which is not a feature of myasthenia gravis?
A.	motor weakness is usually of proximal extremities and bulbar
B.	there is usually no sensory loss
C.	there is usually no reflex loss
D.	symptoms are often worse as the day progresses
E.	it is due to anitibodies formed against acetylcholineesterase
Answer» F.

56.	Which statement is FALSE about MS?
A.	30% of patients will initially present with optic neuritis
B.	CSF protein and gammaglobulin levels are reduced in MS
C.	nearly all patients will demonstrate some abnormality on MRI
D.	the overall life expectancy is not usually reduced with MS
E.	MS symptoms will often worsen with fever and exercise
Answer» C. nearly all patients will demonstrate some abnormality on MRI

57.	A patient presents with right sided arm weakeness and a R facial droop with aphasia. Which artery distribution is the likely to be the cause of her stoke?
A.	right MCA
B.	left MCA
C.	right anterior cerebral artery
D.	left anterior cerebral artery
E.	left vertebrobasilar system
Answer» C. right anterior cerebral artery

58.	Which is true regarding treatment of meningitis?
A.	Empiric treatment in adults consists of ceftriaxone 2g IV.
B.	There is no evidence to support dexamethasone in infants with meningitis especially with Hib meningitis.
C.	Strep pneumoniae is becoming increasingly resistant to ceftriaxone in Australia as well as penicillin.
D.	Neisseria meningitis has high rates of resistance to benzylpen, so ceftriaxone is the first treatment of choice now.
E.	There is no parental treatment available for cryptocccocal meningitis.
Answer» D. Neisseria meningitis has high rates of resistance to benzylpen, so ceftriaxone is the first treatment of choice now.

59.	Which is incorrect regarding the pharmacological treatment of migraine?
A.	chlorpromazine is a first line agent
B.	sumotriptan is a first line agent
C.	dihydroergotamine should not be given if sumotriptan has already been taken
D.	pethidine is not as effective in treatment and has a higher rebound c.f other agents
E.	dexamethasone has been proven to decrease rate of recurrence
Answer» F.

60.	Which of the signs or symptoms below would concern you that the cause of a patients vertigo was central?
A.	associated vomiting
B.	worsens with position change
C.	associated tinnitus
D.	vertical nystagmus
E.	sudden onset
Answer» E. sudden onset

61.	Which CSF finding is incorrect?
A.	antigenic studies are useful where partial treatment with antibiotics renders the CSF sterile on culture
B.	antigenic studies are more sensitive when urine and serum are used as opposed to CSF
C.	in viral meningitis the main white cells usually seen are monocytes
D.	you would expect to see a raised CSF pressure in bacterial meningitis
E.	in viral meningitis you would expect to see a low glucose and a high protein
Answer» F.

62.	Which is INCORRECT regarding the treatment of multiple sclerosis?
A.	Interferon and glatiramer have bee shown to reduce number of relapses in relapsingremitting MS.
B.	IV immunoglobulin monthly for 2 years has shown to reduce annual exacerbations in relapsing-remitting MS.
C.	No treatment currently exists for primary progressive MS to modify the disease.
D.	Exacerbations of MS are treated with methlypred IV as studies have shown this to be superior to other glucocorticoids.
E.	Symptomatic treatment of muscle spasticity is usually best achieved with baclofen.
Answer» E. Symptomatic treatment of muscle spasticity is usually best achieved with baclofen.