Q 01/05

When is Medical Laboratory Professionals Week held each year?

A) Last full seven days of April

B) First seven days of May

C) Second seven days of March

D) Around Thanksgiving

Answer · why

A) Last full seven days of April

It is coordinated by a committee of lab organisations led by ASCLS, and in 2026 fell on April 19–25.

Q 02/05

In which year did Lab Week begin, under the name National Medical Laboratory Week?

A) 1961

B) 1968

C) 1975

D) 1972

Answer · why

C) 1975

'Professionals' was added in 2005 and 'National' was dropped in 2012, giving the current name.

Q 03/05

Roughly what share of clinical decisions in acute-care hospitals is based on laboratory testing?

A) 30%

B) 50%

C) 60%

D) 70%

Answer · why

D) 70%

That statistic is the one Lab Week posters lean on hardest, and it comes from the definition of what a medical laboratory does.

Q 04/05

Which Chicago-based body, founded in 1922, certifies most US laboratory professionals?

A) AMA

B) ASCP

C) CAP

D) AABB

Answer · why

B) ASCP

ASCP represents about 130,000 pathologists and lab professionals and publishes LabMedicine.

Q 05/05

Who identified the main human blood groups in 1901 and won the 1930 Nobel Prize for it?

A) Robert Koch

B) Karl Landsteiner

C) Paul Ehrlich

D) Alexander Wiener

Answer · why

B) Karl Landsteiner

He went on to co-discover the Rh factor in 1937 and the polio virus in 1909.