Which blood type is known as the "universal recipient?"
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- Easy Easy difficulty.
- Medical
Which blood type is commonly called the universal red-cell donor?
Answer
O negative
- Intermediate Intermediate difficulty.
- Medical
Jonas Salk's 1955 vaccine targeted which disease?
Answer
Polio
- Hard Hard difficulty.
- Medical
Which antibiotic was discovered by Alexander Fleming in 1928?
Answer
Penicillin
- Hard Hard difficulty.
- Medical
Which anticoagulant was first sold as rat poison before its U.S. medical approval in 1954?
Answer
Warfarin
- Hard Hard difficulty.
- Medical
Which Dutch physician is credited with inventing the first practical electrocardiograph?
Answer
Willem Einthoven
- Intermediate Intermediate difficulty.
- Medical
Edward Jenner introduced the first widely used vaccine against which disease?
Answer
Smallpox