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Medical MCQs with Explanations

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491MedicalMedium

Biochemical abnormality associated with osteogenesis imperfecta is increase in________?

AAcid phosphatase

BAlkaline phosphatase

CPhosphorylase enzyme

Bicarbonate ion

Correct answer

C. Phosphorylase enzyme

Explanation

The correct answer is Phosphorylase enzyme.

492MedicalMedium

Ophthalmic artery is a branch of________?

AICA

BSphenopalatine artery

CECA

DMaxillary artery

Correct answer

A. ICA

Explanation

The correct answer is ICA.

493MedicalMedium

Which histopathological type of odontogenic keratocyst is commoner, more invasive & has a greater tendency for recurrence?

AParakeratinised

BNon-Keratinised

COrthokeratinised

DDiskeratinised

Correct answer

A. Parakeratinised

Explanation

The correct answer is Parakeratinised.

494MedicalMedium

What is non characteristic of Eagle’s syndrome________?

AExcessive lacrimation

BWhen the jaws are closed the pain subsided

CStabbing type pain orginate in the tonsillar regions

Dpain during mandibular movement

Correct answer

A. Excessive lacrimation

Explanation

The correct answer is Excessive lacrimation.

495MedicalMedium

Cardiac output is a measure of________?

ABlood pressure X cardiac rate

BPeripheral resistance X tissue fluid

CHeart rate X blood volume

DPeripheral resistance X cardiac rate

Correct answer

C. Heart rate X blood volume

Explanation

The correct answer is Heart rate X blood volume.

496MedicalMedium

Vitamin D________?

ADeficiency on adults leads to rickets

BAlong with PTH, increases calcium resorption from bone

CAbsorption requires bile pigments

DSynthesis is regulated at the reaction catalyzed by 15-hydroxylase

Correct answer

B. Along with PTH, increases calcium resorption from bone

Explanation

The correct answer is Along with PTH, increases calcium resorption from bone.

497MedicalMedium

Optic neuritis is a side effect of________?

AEthambutol

BINH

CPyrazinamide

DRifampicin

Correct answer

A. Ethambutol

Explanation

The correct answer is Ethambutol.

498MedicalMedium

The oral microblal fiora of a patient on prolonged broad spectrume antibiotic therapy is predominantly________?

AYeast and fungi

BAnaerobic

CGram negative organisms

DGram positive organism

Correct answer

A. Yeast and fungi

Explanation

The correct answer is Yeast and fungi.

499MedicalMedium

All of the following statement about antimalarial drugs are correct except________?

AMefloquine may safely be given to air pilots

BHalofantrine prolongs QT interval and causes dysarrythmia

CPrimaquine eliminates P. vivax and P. ovale

DPrimaquine is liable to cause hemolysis in patients with G6PD deficiency

Correct answer

A. Mefloquine may safely be given to air pilots

Explanation

The correct answer is Mefloquine may safely be given to air pilots.

500MedicalMedium

Collagen formation is affected in deficiency of________?

AVit A

BVit D

CVit C

DVit B2

Correct answer

C. Vit C

Explanation

The correct answer is Vit C.

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