History of medicineLesson 2 of 3 in the course Germ theory and microbiology

Ignaz Semmelweis: Hand Hygiene, Clinical Evidence, and Medical Resistance

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

This lesson introduces Ignaz Semmelweis’s background and the path that led him to obstetrics. Understanding his training and early career helps explain how he came to investigate childbed fever.

Ignaz Philipp Semmelweis was born on 1 July 1818 in the Tabán neighbourhood of Buda, then part of the Kingdom of Hungary within the Austrian Empire. He was the fifth of ten children in a prosperous family. His father, József, ran a wholesale business selling spices and general goods; his mother was Teréz Müller. The family was of German ancestry.

All flashcards

When and where was Ignaz Semmelweis born?
He was born on 1 July 1818 in the Tabán neighbourhood of Buda.
How did Semmelweis’s studies change direction?
He began studying law in Vienna in 1837, switched to medicine, and earned his medical degree in 1844.
What was Semmelweis’s role at Vienna General Hospital?
From 1846, he was assistant to Professor Johann Klein at the First Obstetrical Clinic.
What did Semmelweis mean by “cadaverous particles”?
Contaminating material that doctors and students could carry from cadavers to patients.
How did later germ theory help explain Semmelweis’s results?
It provided a mechanism for how infectious agents could cause illness and be transferred.

Quiz questions

  1. At Vienna General Hospital, how did average puerperal-fever mortality compare between the two maternity clinics?Answer: About 10% in the First Clinic and below 4% in the Second.
  2. Why did Semmelweis initially choose chlorinated lime for handwashing?Answer: It removed the putrid smell of infected autopsy tissue.
  3. From 1851 to 1855, what was the childbed-fever mortality at Szent Rókus Hospital under Semmelweis’s handwashing policy?Answer: Eight deaths among 933 mothers, about 0.85%.
  4. What does the term “Semmelweis reflex” describe?Answer: Automatically rejecting new knowledge because it conflicts with established assumptions.
  5. How did Joseph Lister contribute to antiseptic practice?Answer: He applied ideas associated with Pasteur’s research to antiseptic surgery.

Based on the Wikipedia article Ignaz Semmelweis, licensed CC BY-SA 4.0. Adapted into a summary, flashcards and quizzes.

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