HESI-A2 Online Practice Questions and Answers

How many millimeters are there in 5 meters?

A. 500

B. 5,000

C. 50,000

D. 500,00

Which of the following can NOT be inferred from the passage?

A. A 1-month-old alfalfa plant will have more bacteria than a 5-month-old plant.

B. A soil without lime will not grow bacteria.

C. Bacteria is located inside the root nodules.

D. A 3-month-old alfalfa plant will have more bacteria than a one-year-old plant.

Reading Material

A complete blood count (CBC) is one of the most useful and requested types of analysis in medical practice. A CBC searches for all the cells that exist in the blood, which are divided into three basic types: white blood cells (leukocytes), platelets, and red blood cells (erythrocytes). All of these blood cells are produced in the bone marrow and correspond to a specific exam, integrated in the CBC: erythrogram, leukogram, and thrombogram.

The erythrogram studies red blood cells. Among other tests, it includes a red blood cell count, a hematocrit, and hemoglobin. When these levels are low, the patient may be suffering from anemia, which can be caused by anything from heavy menstrual bleeding to Addison's disease. A diagnosis of polycythemia may be made if the number of red blood cells is increased.

The leukogram is the test that evaluates the number of white cells present in the blood, which should vary between 4,000 and 10,000 cells per cubic millimeter in most adults. High values of white blood cells are seen with infection or severe emotional/physical stress, while AIDS and chemotherapy are two causes for low values.

The thrombogram is the analysis of platelets, the cells responsible for coagulation. The main function of platelets is to help stop bleeding by helping form a clot. They do this by secreting proteins from their surface that allow them to stick to vessels and each other. Low values of platelets are seen with pregnancy or an enlarged spleen, whereas high values are seen with cancers or iron deficiency.

According to the accompanying text, what are the names of the three basic blood cells?

A. leukocytes, platelets, and erythrocytes

B. red blood cells, erythrocytes, and platelets

C. white blood cells, leukocytes, and platelets

D. erythrograms, leukograms, and thrombograms

Reading Material

A complete blood count (CBC) is one of the most useful and requested types of analysis in medical practice. A CBC searches for all the cells that exist in the blood, which are divided into three basic types: white blood cells (leukocytes), platelets, and red blood cells (erythrocytes). All of these blood cells are produced in the bone marrow and correspond to a specific exam, integrated in the CBC: erythrogram, leukogram, and thrombogram.

The erythrogram studies red blood cells. Among other tests, it includes a red blood cell count, a hematocrit, and hemoglobin. When these levels are low, the patient may be suffering from anemia, which can be caused by anything from heavy menstrual bleeding to Addison's disease. A diagnosis of polycythemia may be made if the number of red blood cells is increased.

The leukogram is the test that evaluates the number of white cells present in the blood, which should vary between 4,000 and 10,000 cells per cubic millimeter in most adults. High values of white blood cells are seen with infection or severe emotional/physical stress, while AIDS and chemotherapy are two causes for low values.

The thrombogram is the analysis of platelets, the cells responsible for coagulation. The main function of platelets is to help stop bleeding by helping form a clot. They do this by secreting proteins from their surface that allow them to stick to vessels and each other. Low values of platelets are seen with pregnancy or an enlarged spleen, whereas high values are seen with cancers or iron deficiency.

Which statement can correctly be inferred from the accompanying passage?

A. A CBC gives a more complete evaluation of a patient's blood than a leukogram.

B. The test of red blood cells is more informative than the tests of white blood cells and platelets.

C. An elevated level of platelets is a confirmation of pregnancy in the patient.

D. A CBC should be part of every physical exam because it tells so much about the patient's blood.

Which word means "to stop or subdue"?

A. Predispose

B. Patent

C. Suppress

D. Recur

Which of the following is an example of a simple sentence?

A. The movie about the comic book superhero.

B. The movie about the comic book superhero that I watched last Friday night was very entertaining.

C. The movie about the comic book superhero had never interested me until last week.

D. The movie about the comic book superhero fascinated me, but it bored my best friend.

Which of the following descriptions relates to water's property of cohesion?

A. Water beading together on top of a freshly waxed car.

B. An ocean stabilizing the temperature of a region.

C. Water dissolving salt to become salt water.

D. A bottle of water cracking when left in the freezer.

The movement of a substance across a cell membrane from low to high concentration is known as ____.

A. active transport

B. passive transport

C. facilitated diffusion

D. diffusion

Which of the following is an example of an ionic bond?

A. NaCl

B. OH

C. H3O+

D. COO-

Which of the following would be a direct result of lipid depletion in the human body?

A. The increase in the amount of proteins secreted in the body.

B. The decrease in the amount of estrogen produced.

C. The decrease in the permeability of the cellular membrane.

D. The transfer of nuclear membrane lipids to the cytoplasm.

E. The exchange of cytoplasmic lipids with membrane bound proteins.