Tracer Isotopes

question 140

Multiple Choice

Tracer isotopes

• A) are used only in plants.
• B) work differently than nontracers in reactions.
• C) have an unbalanced electrical charge.
• D) are detected by their radioactivity.
• E) are not found in nature.

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Definitions:

Respiratory Distress Syndrome

A serious breathing disorder often seen in premature infants, caused by the lack of a slippery substance called surfactant in the lungs.

Maternal Mortality

The death of a woman while pregnant or within 42 days of termination of pregnancy, from any cause related to or aggravated by the pregnancy or its management.

Infant Mortality

Infant mortality is the death of young children under the age of 1, measured as the number of deaths per 1,000 live births in a given year.

Full-Term Infants

Babies born after completing the standard 37 to 40 weeks of gestation, considered to have reached optimal prenatal development.