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JBL REGISTRY EXAM AND PRACTICE EXAM LATEST
2025 TEST BANK| COMPLETE 350 QUESTIONS AND
CORRECT DETAILED ANSWERS ( VERIFIED
ANSWERS) WITH WELL-ELABORATED RATIONALES/
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Which of the following is a physiologic effect of epinephrine when used to treat anaphylactic shock?
A: As a bronchodilator, it improves the patient's breathing.
B: As a vasoconstrictor, it lowers the blood pressure.
C: As an antihistamine, it blocks chemicals that cause the reaction.
D: As a vasodilator, it increases the blood pressure. - Correct Answer -
A: As a bronchodilator, it improves the patient's breathing.
Reason:
Epinephrine possesses dual effects. As a bronchodilator, it relaxes the smooth muscle of the bronchioles and improves the patient's breathing.As a vasoconstrictor, it constricts the blood vessels and increases the patient's blood pressure. Diphenhydramine (Benadryl) is an antihistamine; it blocks H1 histamine receptor sites, which blocks the release of the chemicals (histamines) that are causing the allergic reaction.
You are assessing a 5-year-old boy with major trauma. His blood pressure is 70/40 mm Hg and his pulse rate is 140 beats/min. and weak.
The child's blood pressure:
A: suggests increased intracranial pressure.
B: indicates decompensated shock. 1 / 4
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C: reflects adequate compensation.
D: is appropriate based on his age. - Correct Answer - B
Reason:
The low normal systolic blood pressure (SBP) for a child between 1 and 10 years of age is calculated by multiplying his or her age (in years) by 2 and adding 70. Using this formula, the low normal SBP for a 5-year-old child is 80 mm Hg; anything less indicates hypotension. Therefore, a SBP of 70 mm Hg in a 5-year-old child, especially in the context of major trauma, indicates decompensated shock. Patients with increased intracranial pressure are typically hypertensive, not hypotensive.
Unresponsiveness, shallow breathing, and constricted pupils are indicative of what type of drug overdose?
A: Amphetamine
B: Narcotic
C: Barbiturate
D: Marijuana - Correct Answer - B: Narcotic
Reason:
Signs of a narcotic (opiate) overdose from drugs such as heroin, morphine (Astro morph, Dur morph), meperidine (Demerol), or codeine include altered mental status; slow, shallow breathing; pupillary constriction (miosis), hypotension; and bradycardia. Narcotics are central nervous system depressants that, when taken in excess, suppress the vital functions necessary for life, such as breathing, heart rate, and blood pressure. Barbiturates produce the same effects; however, the pupils are typically dilated (mydriasis), not constricted. Marijuana and amphetamine drugs are central nervous system stimulants and would thus cause the patient to become restless or even combative. 2 / 4
pg. 3 A 22-year-old man crashed his motorcycle into a tree. He is found approximately 20 feet away from his bike and is responsive to pain only.He is not wearing a helmet. You are unable to effectively open his airway with the jaw-thrust maneuver. What should you do?
A: Insert an oral airway and assess his breathing.
B: Carefully tilt his head back and lift up on his chin.
C: Apply high-flow oxygen and assess his carotid pulse.
D: Suction his oropharynx and reattempt the jaw-thrust. - Correct
Answer - B: Carefully tilt his head back and lift up on his chin.
Reason:
Regardless of the situation, you MUST be able to establish and maintain a patent airway. Without a patent airway, the patient will die. If you are unable to effectively open a trauma patient's airway with the jaw-thrust maneuver, you should carefully perform the head tilt-chin lift maneuver.You cannot assess, not to mention treat, a patient's airway if it is not open and clear of secretions or foreign bodies.
When is it MOST appropriate to clamp and cut the umbilical cord?
A: Before the newborn has taken its first breath
B: Immediately following delivery of the newborn
C: As soon as the cord has stopped pulsating
D: After the placenta has completely delivered - Correct Answer - C: As soon as the cord has stopped pulsating
Reason: 3 / 4
pg. 4 Generally, it is safe to clamp and cut the umbilical cord once it has stopped pulsating and the baby is breathing adequately. When blood flow through the umbilical cord ceases, it will stop pulsating; this indicates that the baby is oxygenating its own blood. If the cord does not stop pulsating and/or the baby is not breathing adequately, the cord should not be clamped and cut and the baby should be kept at the level of the mother's perineum and managed appropriately while end route to the hospital.
A 32-year-old man who was stung by a bee has diffuse hives, facial swelling, and difficulty breathing. When he breathes, you hear audible stridor. What does this indicate?
A: Swelling of the upper airway structures
B: Narrowing of the two mainstem bronchi
C: Swelling of the lower airway structures
D: Narrowing of the bronchioles in the lungs - Correct Answer - A
Reason:
This patient is experiencing a severe allergic reaction (anaphylaxis).Stridor, which is a high-pitched sound heard on inhalation, indicates swelling of the structures and tissues of the upper airway. If not promptly treated, the patient's airway may close completely, resulting in respiratory arrest. Narrowing of the bronchioles in the lungs causes wheezing, a whistling sound that may be heard during inhalation, exhalation, or both.
When an error occurs while using the AED, it is MOST often the result
of:
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