NREMT Online Practice Questions and Answers

Correct Answer: A

The two person bag-valve-mask is the most effective method to administer ventilations with a BVM; however, it is not always practical for field application due to limited resources and limited space. The use of mouth to mask ventilations is also identified as a viable form of artificial ventilations, but the risk of cross contamination in mouth to mouth ventilations renders it less desirable to health care providers.

Correct Answer: B

Cyanosis occurs when the oxygen saturation of arterial blood falls below 85-90%. It is often presents in the lips and nail beds first.

Correct Answer: A

A respiratory rate that is either too fast or too slow may be a sign of inadequate breathing. Respiratory distress occurs with many medical and trauma problems and spans the age groups, making choice b inaccurate. An increased work (effort) of breathing frequently accompanies inadequate breathing as the patient attempts to compensate, but it should never be considered a "normal sign" as suggested by choice

c. Patients may breathe shallowly or deeply for a number of reasons, only one of which is to compensate for an abnormal rate, making choice d inaccurate.

Correct Answer: C

The two-flap valve is called the mitral valve, also known as the bicuspid valve. The three-flap valve is the tricuspid valve.

Correct Answer: B

Due to the hyperglycemic state the kidneys try to diereses the glucose out of the blood stream the more dehydrated the patient becomes. As the blood becomes thicker and thicker the lower the cardiac output and the harder the heart has to work. With the excess glucose and incomplete combustion from other fuel sources the brain is impaired as if the patient is intoxicated.

Correct Answer: D

Decompensated shock physiologically occurs as the precapillary sphincters that guard the peripheral capillary beds relax secondary to local blood chemistry changes due to shock. The opening of these sphincters allows blood to flow back into the stagnant capillary beds which decreases the available blood volume for core perfusion, and, results in a significant drop in systemic vascular resistance. Thus the clinical finding consistent with decompensated drop is a sudden decrease in blood pressure, tachypnea, and continued elevation of the heart rate.

Correct Answer: D

Epinephrine has Alpha 1 and 2 beta 1 and 2 effects. Alpha 1 stimulation causes vaso constriction which works to counter the distributive shock. Alpha 2 stimulation regulates the amount of vaso constriction required to achieve desired results. Beta 1 stimulation increases the heart rate to increase cardiac output. Beta 2 stimulation dilates the bronchioles to counter act the reactive airway syndrome.

Correct Answer: B

To avoid misunderstanding, always repeat medical orders exactly as you heard them. Once you have done that, you can question any order you do not understand or about which you are unclear. When you complete your written patient care report, you should include the order in your report.

Correct Answer: A

The common procedure is to safely dispose of used airways.

Correct Answer: C

When your patient does not speak English, try to find an interpreter, and be especially careful to avoid misunderstandings. Try using sign language and gestures until an interpreter can be found.