DSST® practice test

Free DSST Health and Human Development Practice Test (2026)

This is a set of 25 original practice questions that follow the official DSST Health and Human Development content outline and its topic weights, each with a short explanation. Answer all 25, then read the explanations to see which topics need more study.

  • 25 questions
  • 6 topics from the official outline
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The practice test

25 questions

Question 1 of 25Which part of tobacco smoke binds to hemoglobin in red blood cells and reduces the blood's ability to carry oxygen?
Question 2 of 25Which colorless, odorless radioactive gas, given off by uranium in soil and rock, can build up in basements and is the leading cause of lung cancer among nonsmokers?
Question 3 of 25A new dietary supplement's label says it "supports immune health." Under federal law, which statement about the product is true before it goes on sale?
Question 4 of 25In which condition does the immune system destroy the insulin-producing beta cells of the pancreas, so that the person needs insulin to survive?
Question 5 of 25After a night of drinking, which of these actually lowers a person's blood alcohol concentration?
Question 6 of 25In the main text of the DSM-5, which behavioral (non-substance) addiction is listed as a diagnosable disorder in the substance-related and addictive disorders chapter?
Question 7 of 25Which of these vitamins is fat-soluble and can be stored in the body's fatty tissue?
Question 8 of 25After months of drinking every night, a person needs four drinks to feel the effect that two drinks used to give. What is this called?
Question 9 of 25Where in the female reproductive system does fertilization of an egg by a sperm usually take place?
Question 10 of 25Under the 2017 ACC/AHA blood pressure guideline, a reading of 134/84 mm Hg falls in which category?
Question 11 of 25Which cancer causes the most cancer deaths in the United States, for men and women combined?
Question 12 of 25Which hormone, released by the adrenal cortex during long-lasting stress, can weaken immune function when it stays high for weeks or months?
Question 13 of 25Which method of birth control also lowers the risk of sexually transmitted infections?
Question 14 of 25Using the formula 220 minus age to estimate maximum heart rate, what is 70% of the estimated maximum for a 40-year-old?
Question 15 of 25A snack contains 10 g of fat, 20 g of carbohydrate and 5 g of protein. About how many calories does it have?
Question 16 of 25Which best describes Healthy People 2030?
Question 17 of 25In the FITT principle for planning exercise, what does the letter I stand for?
Question 18 of 25Which public program mainly provides health insurance to people aged 65 and older, regardless of income?
Question 19 of 25Which component of physical fitness is the ability of the heart, lungs and blood vessels to supply oxygen to the muscles during long, steady exercise?
Question 20 of 25A smoker says he will quit within the next 30 days, has set a quit date and has already bought nicotine patches. In the transtheoretical (stages of change) model, he is in which stage?
Question 21 of 25John Gottman's research names four communication patterns that predict divorce: criticism, contempt, defensiveness and stonewalling. Which did he find to be the single strongest predictor?
Question 22 of 25Which form of arthritis is an autoimmune disease in which the immune system attacks the lining of the joints?
Question 23 of 25Why won't a course of antibiotics cure a common cold?
Question 24 of 25A woman with no symptoms has a screening mammogram so that any breast cancer can be found early, while it is easier to treat. Which level of prevention is this?
Question 25 of 25In Elisabeth Kübler-Ross's model of how people respond to dying, which stage comes between anger and depression?

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