Urolithiasis Flashcards by Morgan LaRoque

Q

What is the MC type of stone?

A

Calcium oxalate

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Q

MC cause of calcium oxalate stones?

A

Dehydration

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Q

How do calcium oxalate stones show up on a x-ray?

A

Radio-opaque

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Q

How do uric acid stones show up on an x-ray?

A

Radiolucent

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Q

Struvite/Triple Phosphate stone etiology

A

UTI

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Q

How do struvite stones show up on x-ray?

A

Radio-opaque?

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Q

Cystine stone etiology

A

Genetic defect

Autosomal recessive

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Q

What genome usually forms cystine stones?

A

Homozygous

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Q

What are Matrix stones associated with?

A

Proteus UTI

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Q

How do Matrix stones show up on a x-ray?

A

Radiolucent

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Q

Ammonium acid urate etiology

A

Associated with UTI and laxative abuse

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Q

How do ammonium acid rate stones show up on an x-ray?

A

Radiolucent

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Q

Protease inhibitor stone etiology

A

Precipitated drug: Indinavir

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Q

Urolithiasis clinical presentation

A

Pain: Flank, Colic, Radiation
N/V
Fevers
Hematuria
Hyperkinetic

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Q

What imaging would you order for evaluation of Urolithiasis?

A

CT Abd/pelvis without contrast

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