Acute Osteomyelitis Infection
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Questions and Answers

What is a limitation of using a nuclear scan in diagnosing osteomyelitis?

  • It is a very specific test for osteomyelitis.
  • It cannot distinguish between pus and haematoma. (correct)
  • It is not sensitive enough to detect early stages of osteomyelitis.
  • It is not commonly used in diagnosing osteomyelitis.

What is a finding that is likely to be present in a patient with osteomyelitis?

  • Normal Hb level
  • Negative blood culture
  • Increased ESR (correct)
  • Decreased WBC count

What is the purpose of performing a Gram stain on the aspirate?

  • To rule out acute rheumatic fever
  • To determine the antibiotic sensitivity
  • To diagnose sickle cell disease
  • To show Gram-positive or negative organisms (correct)

What is a characteristic of early stage osteomyelitis?

<p>Can differentiate between pus and blood collection (C)</p> Signup and view all the answers

What is the percentage of cases where blood culture is positive in osteomyelitis?

<p>50% (D)</p> Signup and view all the answers

What is the purpose of performing a genotype test in osteomyelitis?

<p>To exclude sickle cell disease (B)</p> Signup and view all the answers

What is a characteristic of acute septic arthritis?

<p>Tenderness is diffuse and all movement at the joint is abolished (A)</p> Signup and view all the answers

When should antibiotic treatment be started in osteomyelitis?

<p>After aspirate and blood samples are taken (C)</p> Signup and view all the answers

What is a characteristic of early myositis?

<p>Broad-like swollen of the limb and diffuse pain (B)</p> Signup and view all the answers

What is a difference between osteomyelitis and cellulitis?

<p>Osteomyelitis is primarily a bone infection (B)</p> Signup and view all the answers

Flashcards

Nuclear Scan Limitation

Nuclear scans can't tell the difference between pus (infection) and a blood clot (hematoma).

ESR in Osteomyelitis

Increased Erythrocyte Sedimentation Rate (ESR) is a common sign of inflammation, which is present in osteomyelitis.

Gram Stain Purpose

Gram staining of the aspirate helps to identify bacteria based on their cell wall structure.

Early Osteomyelitis Characteristic

In early osteomyelitis, the infection is localized and the imaging can distinguish between pus and blood.

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Blood Culture Positivity

About half of osteomyelitis cases show bacteria in the blood.

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Genotype Test Purpose

A genotype test can rule out sickle cell disease, a condition that increases the risk of osteomyelitis.

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Acute Septic Arthritis Characteristic

Acute septic arthritis causes severe pain and makes any movement of the joint impossible.

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Antibiotic Treatment Timing

Start antibiotic treatment only after taking the necessary samples to ensure proper diagnosis and treatment.

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Early Myositis Characteristic

Early myositis presents with diffuse swelling and pain in the affected limb.

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Difference between Osteomyelitis and Cellulitis

Osteomyelitis primarily infects bones, while cellulitis affects the skin and underlying tissues.

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