Test Prep HESI-A2 Online Practice Questions and Exam Preparation

Test Prep HESI-A2 Online Questions & Answers

• Question 131:

  98.6 degrees Fahrenheit is what temperature in Celsius?

  A. 119.88 degrees Celsius
  B. 37 degrees Celsius
  C. 72.55 degrees Celsius
  D. 86.77 degrees Celsius
  B. 37 degrees Celsius

• Question 132:

  

  Why is it difficult to measure the effect of food away from home on diet quality?

  A. People eat out too much, so it is not possible to collect accurate data.
  B. Researchers are unable to assess the nutritional quality of people's diets.
  C. Peoples' food preferences are too complex and may even be unmeasurable.
  D. Too many unknown variables affect the data.
  D. Too many unknown variables affect the data.

• Question 133:

  Reading Material

  Smallpox is one of the deadliest and dangerous diseases affecting the human population across the world. The first recorded epidemic was in 1350 BC during the Egyptian-Hittite war, and it was quite prevalent in the late 1800's through a large part of the 1900's. Approximately five hundred million people were infected with the disease prior to its eradication in the 1970's, with the last case being in Somalia in 1977. Symptoms of infection included excessive bleeding, high fever, delirium, vomiting, and a raised pink rash. Most cases of smallpox ended in death and survivors were often seriously maimed by pock marks, blindness, or infertility. The pain and suffering remained for a lifetime after the disease was gone.

  There is no known cure for smallpox, only preventative vaccinations. Because smallpox was wiped out in 1970s, the World Health Organization (W.H.O.) recommended that all countries stop vaccinating for the disease in 1980. This means that today, most young people are not vaccinated against the disease. Because the disease is considered eradicated, the issue of what to do with the remaining government-held vaccines has been an issue of debate. Should the stored vaccines be destroyed since the disease is no longer a concern, or do we keep them in storage for research or in case of an unexpected outbreak? Experts at the Center for Disease Control (C.D.C.) and the World Health Organization have spent an enormous amount of time researching this issue and have given much educated thought to the matter. Reportedly the W.H.O. wants to destroy all vaccines, however some scientists feel the destruction could do more harm than good.

  The issue of bioterrorism adds another layer of complexity to the issue. In the case of smallpox, just a small amount of the virus released in the air could infect thousands of people in 6-24 hours. If such a disease were used as a weapon, we would obviously want the vaccine available for use. However, the fact that the vaccine still exists allows the use of smallpox for bioterrorism in the first place. If we could be sure all of the vaccine was destroyed, the decision may be a bit easier, but what if it the vaccine were only partially destroyed, and the remainder was used by an unfriendly nation?

  In this world of global unrest and increasing technology, bioterrorism will come an increasing concern. The smallpox virus could be a serious threat to world health should any nation engage in the act if bioterrorism against an enemy. The question remains: do we run the risk of bioterrorism by continuing to store the medicine for several hundred smallpox vaccinations or do we destroy the vaccine and pray that there is no outbreak of the deadly virus? Because it is unknown at this time if researchers are able to re-create the vaccine, either solution may have permanent consequences.

  Which of these claims cannot be inferred from this passage?

  A. Smallpox is the deadliest disease that threatens world health.
  B. Smallpox was once a major worldwide disease.
  C. The issue of whether or not to destroy the vaccine is complex.
  D. The smallpox virus has been eradicated except for a few government-held vaccines.
  A. Smallpox is the deadliest disease that threatens world health.

• Question 134:

  Which sentence is written correctly?

  A. Theyre going to Disney World next year.
  B. There going to Disney World next year.
  C. Their going to Disney World next year.
  D. They're going to Disney World next year.
  D. They're going to Disney World next year.

• Question 135:

  At a comic book store, Robert purchased three comics for $2.65 each. If he paid with a $20 bill, how much change did he receive?

  A. $12.05
  B. $13.15
  C. $13.85
  D. $17.35
  A. $12.05

• Question 136:

  Ligaments connect ____.

  A. tendon to bone
  B. muscle to muscle
  C. bone to bone
  D. muscle to bone
  C. bone to bone

• Question 137:

  Solve this ratio and proportion problem: 8 is to 32 as 9 is to N. What is N?

  A. 36
  B. 27
  C. 33
  D. 45
  A. 36

• Question 138:

  The engulfing of large particles into the cell is referred to as ____________?

  A. Phagocytosis
  B. Pinocytosis
  C. Exocytosis
  D. Cellular Respiration
  E. Active Transport
  A. Phagocytosis

• Question 139:

  A scientist is proposing an experiment to study the effect of a certain chemical on rat brain development. The scientist believes that this chemical will enhance the rats' brain development. Which of the following terms describes this step of the scientific process?

  A. Hypothesis.
  B. Experiment.
  C. Analysis.
  D. Conclusion
  A. Hypothesis.

• Question 140:

  Which of the following is the correct description of stoichiometry?

  A. Stoichiometry describes the chemical reactions between the elements of a compound.
  B. Stoichiometry is the calculation of relative quantities of reactants and products in chemical reactions.
  C. Stoichiometry describes the color flares expected based on the participants of a chemical reaction.
  D. Stoichiometry describes the fundamental properties of atoms universally.
  B. Stoichiometry is the calculation of relative quantities of reactants and products in chemical reactions.