HESI-A2 Online Practice Questions and Answers

What is the boiling point of water?

A. 32° Fahrenheit

B. 100° Fahrenheit

C. 100° Celsius

D. 212° Celsius

The patient currently drinks 4 12 oz. cans of diet soda per day. How many ounces of diet soda can the patient drink if he reduces his intake by 25%?

A. 12 ounces

B. 24 ounces

C. 36 ounces

D. 40 ounces

Reading Material

(1)

A research team from the University of Bonn has succeeded for the first time in using light stimuli to stop life-threatening cardiac arrhythmia in mouse hearts. (2) Furthermore, as shown in computer simulations at Johns Hopkins University, this technique could also be used successfully for human hearts.

(3)

The study opens up a whole new approach to the development of implantable optical defibrillators, in which the strong electrical impulses of conventional defibrillators are replaced by gentler, pain-free light impulses. (4) The Journal of Clinical Investigation has now published the results. (5) Ventricular fibrillation!

(6)

When the heart muscle races and no longer contracts in an orderly fashion, sudden death often follows due to the lack of blood circulation. (7) In such an emergency, a defibrillator helps to restore normal heart activity by means of intense electrical shocks. (8) In patients with a known risk for these arrhythmia, the prophylactic implantation of a defibrillator is the treatment of choice. (9) If ventricular fibrillation is detected, a pulse of electricity is automatically generated, which normalizes the excitation of the heart muscle and saves the person's life.

(10)

"When an implanted defibrillator is triggered, which unfortunately can also happen because of false detection of arrhythmia, it is always a very traumatic event for the patient", says the head of the study, Junior-Professor Philipp Sasse of the Institute of Physiology I at the University of Bonn. (11) "The strong electrical shock is very painful and can even damage the heart further". (12) Therefore, Professor Sasse's team investigated the principles for a pain-free, gentler alternative. (13) As the scientists have now shown, ventricular fibrillation can be stopped by optical defibrillation.

What is the main idea of this text?

A. Traditional defibrillators cause painful shocks that may damage the heart.

B. New research has suggested that light stimuli may be a gentler but effective way to treat cardiac arrhythmia.

C. More research should be done to determine the cause of cardiac arrhythmia.

D. The University of Bonn is at the cutting edge of cardiac research.

The patient seemed nervous now that the impending surgery date was confirmed. When is the surgery most likely to happen out of the following choices?

A. soon

B. next year

C. within ten years

D. never

Select the correct definition of the underlined word in the sentence.

The patient demonstrated a neurological deficit he had not shown prior to the accident.

A. ability

B. shortfall

C. error

D. concurrence

What is the best description for the term contraindication?

A. An indication of a problem

B. Already present

C. To begin or put into practice

D. A reason why something should not be done

Select the correct word(s) for the blank in the following sentence. He had to choose _________ 6 ties for the interview.

A. between

B. from

C. before

D. among

The neuron is composed of a/n ________, which transmits signals toward the cell body, and a/n _______, which transmits signals away from the cell body.

A. dendrite, axon

B. axon, dendrite

C. filament, axon

D. axon, filament

What is the name of the heart valve found between the left atrium and left ventricle?

A. aortic valve

B. tricuspid valve

C. semilunar valve

D. mitral valve

Insulin is produced in the ____ and functions to ____.

A. Langerhan cells; metabolize macronutrients and increase the amount of glucose in the blood

B. pancreatic islets; metabolize macronutrients primarily through the absorption of glucose into the body's cells

C. kidney; metabolize macronutrients primarily through the absorption of glucose into the body's cells

D. beta cells; increase the blood flow throughout the body