Use the Following Information to Answer the Questions Below

question 33

Multiple Choice

Use the following information to answer the questions below.
The research team established similar lymphocyte cultures from a number of human donors, including healthy teenagers of both genders, patients already suffering from long-term bacterial infections, and elderly volunteers. They found that the increase in lymphocyte incorporation after pathogen introduction was slightly lower in some of the female teenagers and significantly lower in each of the elderly persons. They repeated the study with a larger number of samples but got the same results.
-Which of the following investigations might be most productive to show what the data on the teenagers might indicate?

• A) test male teenagers
• B) test teenagers who say they are not sexually active
• C) test female teens at different times in their menstrual cycles
• D) test relatives of the teens previously tested
• E) test teenagers from different school systems

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Definitions:

Stress Incontinence

The involuntary loss of urine during physical activity that puts pressure on the bladder, such as coughing, sneezing, or exercising.

Sneezes

A reflex action to expel air forcibly from the nose and mouth due to irritation in the nasal passages, serving as a mechanism to clear the nasal tract.

Hematemesis

The vomiting of blood, an alarming symptom that can indicate a serious medical condition, such as an ulcer or a gastrointestinal hemorrhage.

Chronic Glomerular Nephritis

A long-standing inflammation of the glomeruli, the filtering units of the kidney, which can lead to kidney failure.