Test Prep HESI-A2 Online Practice Questions and Exam Preparation

Test Prep HESI-A2 Online Questions & Answers

• Question 291:

  What is the normal pH of blood?

  A. 7.0-7.5
  B. 7.25-7.35
  C. 7.50-7.65
  D. 7.35-7.45
  D. 7.35-7.45

• Question 292:

  The volume of air in a normal breath is called ____.

  A. tidal volume
  B. oxygen reserve
  C. residual volume
  D. total lung capacity
  A. tidal volume

• Question 293:

  Inhalation requires the contraction of what structure?

  A. The lungs
  B. The lower respiratory tubules
  C. The diaphragm
  D. The upper respiratory tubules
  C. The diaphragm

• Question 294:

  Which of these sentences is written correctly?

  A. Him likes everything except the Brussels sprouts.
  B. Him likes everything accept the Brussels sprouts.
  C. He likes everything accept the Brussels sprouts.
  D. He likes everything except the Brussels sprouts.
  D. He likes everything except the Brussels sprouts.

• Question 295:

  Convert 0.125 into fraction form.

  A. 1/2
  B. 1/4
  C. 1/16
  D. 1/8
  D. 1/8

• Question 296:

  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.

  All of these statements are facts except ____.

  A. The triggering of an implanted defibrillator can be a painful experience for the cardiac patient.
  B. Optical defibrillation is the best alternative for all cardiac patients.
  C. When the heart does not contract in an orderly fashion, sudden death is often the result.
  D. Scientists successfully used light stimuli to stop cardiac arrhythmia in mouse hearts.
  B. Optical defibrillation is the best alternative for all cardiac patients.

• Question 297:

  How many yards are in a mile?

  A. 1,000
  B. 1,760
  C. 5,280
  D. 10,000
  B. 1,760

• Question 298:

  A concentration of 120.9132 g of MgO in 3L of solution will be what molality? (The atomic weight are: Magnesium: 24.305 g/mol, Oxygen: 15.9994 g/mol)

  A. 0.5 mol MgO
  B. 1.0 mol MgO
  C. 1.5 mol MgO
  D. 2.0 mol MgO
  B. 1.0 mol MgO

• Question 299:

  Which word in the following sentence is grammatically incorrect?

  The admissions consultant outlined what makes a thorough application package, unrespective of financial hardship.

  A. consultant
  B. thorough
  C. package
  D. unrespective
  D. unrespective

• Question 300:

  Which word means "producing a strong effect"?

  A. Overt
  B. Potent
  C. Ominous
  D. Insidious
  B. Potent