FREE PHTLS Knowledge Questions and Answers

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Which one most accurately describes the process via which pulmonary contusion impairs gas exchange?

Correct! Wrong!

A pulmonary contusion is a bruise or injury to the lung tissue, usually brought on by blunt trauma to the chest, like in a car accident or a fall. The correct response is "Collapse of the alveoli." The tiny air sacs in the lungs called alveoli, where gas exchange takes place, may collapse as a result of this injury.

Which part of the spine innervates the phrenic nerve the most?

Correct! Wrong!

Most of a patient's breathing effort and diaphragm movement are controlled by the phrenic nerve. Innervation of the phrenic nerve comes from C3 to C5. Breathing is hampered by spinal injuries at or above this level. One helpful way to keep this in mind is the proverb "3-4-5 keeps the diaphragm alive."

The patient had an abdominal gunshot wound and is clearly in shock. Which action on the situation would you be least likely to take?

Correct! Wrong!

Patients who have experienced penetrating trauma are not immobilized on a backboard unless there are indications of spinal involvement. Spinal mobility limitations or immobilization waste valuable transportation time and offer no therapeutic advantages. If CPR is necessary but the patient is not immobilized, a backboard can be used to move them to a stretcher. Rather than spinal immobilization, a fast head-to-toe examination, bleeding control, and first vitals on scene are more likely to be carried out.

The maximum amount of blood lost from a tibia and fibula fracture is as follows:

Correct! Wrong!

According to Prehospital Trauma Life Support (PHTLS), a tib/fib fracture can cause up to 1,000 mL (1 liter) of blood.

Both the anterior left arm and the anterior chest of your patient are burned. What percentage of the surface area of their body is burned?

Correct! Wrong!

Without a Rule of Nines question, what would a trauma quiz be? 4.5% is the anterior left arm and 9% is the anterior chest. If you answered incorrectly, you might have given 9% for the entire left arm or 18% for the anterior torso (only the patient's chest was affected).

Applying a traction splint to a fractured foot is mostly done for the following reasons:

Correct! Wrong!

Although traction splints can accomplish all of the above, controlling bleeding is the main reason they are used. The amount of free space that can contain blood is greatly decreased when bone ends line together.

Which of the following describes a spine injury patient as meeting the NEXUS criteria?

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One of the five elements of the NEXUS criterion is determining the level of intoxication in a patient. A patient who is intoxicated may not be as trustworthy when it comes to reporting or isolating pain. Other factors taken into consideration as part of the criterion include focal neuro deficit, midline spine discomfort, distracting injury, and changed state of awareness.

You are getting ready to apply a moist dressing to a bodily part that has been severed. What is the best way to hydrate the dressing?

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Amputated body parts should be treated with regular saline. It is least likely to induce fluid to move into or out from the severed region since it contains the same amount of salt as the body. An severed component should never be immersed in any kind of fluid.

Which of the following accurately describes the difference between an epidural and subdural hemorrhage?

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Subdural bleeding are typically venous, which makes them slower. Because epidural bleeding are generally arterial, they happen more quickly. They could come from a strike to the temple. When there is an initial loss of consciousness in an epidural hematoma, followed by a time of consciousness prior to considerable deterioration, this can be observed as a lucid period. This is considered a classic discovery that happens in a lower proportion of cases.

Out of all the presentations, which one best represents cardiac tamponade?

Correct! Wrong!

Pressure is created around the heart by the fluid in cardiac tamponade. As a result, the heart pumps out less blood and produces less cardiac output. It is possible to find JVD, hypotension, constricted pulse pressure, and muffled heart sounds. We refer to this as Beck's Triad. Tamponade will be characterized by elevated respiratory and pulse rates, although this is not the most informative choice as it might be any ailment causing shock.

Which of the following describes an adult patient who should be sent to a trauma hospital in accordance with the Centers for Disease Control Trauma Triage Guidelines?

Correct! Wrong!

The CDC Trauma Triage Guidelines include anatomical and physiological criteria, which are followed by additional elements including the mechanism of damage. Transport to a trauma center is indicated by physiologic criteria, which include respiratory rates of less than 10 or more than 29.

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