Ch30 EMT Environmental Emergencies Quiz

vejetuja's version from 2016-04-09 17:45


Question Answer
All of the following terms are used to describe a cold body part that is not frozen, EXCEPT (needs options)frostbite
A 48-year-old male was stung on the leg by a jellyfish while swimming in the ocean. He is conscious and alert, but complains of intense pain at the wound site. Specific treatment for this patient includesirrigating the wound with vinegar and immersing his leg in hot water.
A person's ability to shiver is lost when his or her body temperature falls below90°
Which of the following would be the LEAST likely to occur in a patient with a core body temperature of between 89°F and 92°F? (Needs options)Tachycardia
An air embolism associated with diving occurs whenthe diver holds his or her breath during a rapid ascent.
Which of the following statements regarding lightning strikes is MOST correct? (Needs options)Lighting often results in a brief period of asystole that resolves spontaneously
You are assessing a 33-year-old male who complains of severe abdominal pain, weakness, and nausea. He tells you that he was gathering wood to build a fire when he felt a sudden, sharp pain on the back of his hand. Your assessment reveals that the patient's abdomen is rigid and painful to palpation. You should suspecta black widow spider bite
To assess a patient's general temperature, pull back on your glove and place the back of your hand on his or her skin at theabdomen
A 20-year-old male was pulled from cold water by his friends. The length of his submersion is not known and was not witnessed. You perform an initial assessment and determine that the patient is apneic and has a slow, weak pulse. You shouldprovide rescue breathing, remove wet clothing, immobilize his spine, keep him warm, and transport carefully
Heat cramps are MOST likely the result ofa loss of water and electrolytes
Patients with generalized hypothermia are at an increased risk of a local cold injury becauseblood is shunted away from the extremities to the body's core.
Geriatric patients, newborns, and infants are especially prone to hyperthermia because theyexhibit poor thermoregulation
Compared to adults, infants and children are at higher risk for hypothermia for all of the following reasons, EXCEPT: a) a decreased ability to shiver b) a smaller amount of body fat c) a smaller overall muscle mass d) a relatively small surface aread) a relatively small surface area.
While drinking beer with his friends near a creek, a 31-year-old male was bitten on the leg by an unidentified snake. The patient is conscious and alert and in no apparent distress. Your assessment of his leg reveals two small puncture marks with minimal pain and swelling. In addition to administering oxygen and providing reassurance, further care for this patient should includesupine positioning, splinting the leg, and transporting
Covering a patient's ________ will significantly minimize radiation heat loss.Head
In order for sweating to be an effective cooling mechanismit must be able to evaporate from the body
Which of the following conditions would be the LEAST likely to increase a person's risk of hypothermia? (Needs options)Hyperglycemia
Approximately 12 hours after scuba diving with her friends, a 29-year-old female presents with pain in her elbows and knees. She is conscious and alert and is breathing with adequate tidal volume. When asked, she states that she may have ascended too rapidly during her dive, but didn't experience any symptoms until now. When treating this patient, you shouldplace her in a left lateral recumbent position with her head down
High humidity reduces the body's ability to lose heat throughevaporation
The venom of a brown recluse spider is cytotoxic, meaning that itcauses severe local tissue damage
To obtain the MOST accurate reading of a patient's core body temperature, you should place a special hypothermia thermometerinto the patient's rectum
Which of the following statements regarding drowning is MOST correct? (Needs options)Laryngospasm following submersion in water makes rescue breathing difficult.
Most of the serious injuries associated with scuba diving are caused bytoo rapid of an ascent
Which of the following is an early sign of pit viper envenomation? (Needs options)Local swelling and ecchymosis
Burns associated with lightning strikes are typicallysuperficial
Heatstroke occurs whenthe body's heat-eliminating mechanisms are overwhelmed.
You are dispatched to a residence for a young female who is “sick.” The patient complains of a rash to her lower extremities and truncal area. Your assessment reveals a small, painful blister on her inner thigh. As your partner is taking the patient's vital signs, she states that she and her family returned from a camping trip 2 days ago. On the basis of this patient's presentation, you should suspectLyme disease
A frostbitten foot can be identified by the presence ofmottling and blisters
Hyperthermia is MOST accurately defined as a condition in whichthe body is exposed to more heat than it can lose.
You are dispatched to a local high school track and field event for a 16-year-old male who fainted. The outside temperature is approximately 95°F with high humidity. Upon your arrival, the patient is conscious, alert, and complains of nausea and a headache. His skin is cool, clammy, and pale. You shouldmove him into the cooled ambulance
Geriatric patients are at a higher risk for heatstroke becausecirculation to the skin is reduced
In contrast to the brown recluse spider, the black widow spideris large and has a red-orange hourglass mark on its abdomen
You receive a call to a residence for a “sick patient.” Upon your arrival, you find the patient, a 53-year-old diabetic male, lying down on his front porch. His wife tells you that he had been mowing the lawn in the heat for the past 3 hours. The patient is confused and has hot, moist skin. His pulse is weak and thready and his BP is 90/50 mm Hg. In addition to administering 100% oxygen, you shouldload him into the ambulance and begin rapid cooling interventions.
Shivering is a mechanism in which the body generates heat byincreasing the metabolic rate.
You and your partner are standing by at a large social event at a river resort when a frantic woman tells you that she found a young male floating face-down in the water. Nobody claims to have witnessed the event. After you and your partner enter the water and reach the patient, you shouldmove him as a unit to a supine position
Breath-holding syncope is caused by a decreased stimulus to breathe and occurs whena swimmer hyperventilates prior to entering the water
A patient with a core body temperature of 92°F will MOST likely experiencerapid breathing
The MOST prominent symptom of decompression sickness isabdominal or joint pain
The two MOST efficient ways for the body to eliminate excess heat aresweating and vessel dilation
The body's natural protective mechanisms against heat loss arevasoconstriction and shivering
Rough handling of a hypothermic patient with a pulse may causeventricular fibrillation
The EMT-B must assume that any unwitnessed water-related incident is accompanied bypossible spine injury
The body's natural cooling mechanism, in which sweat is converted to a gas, is calledevaporation
Signs and symptoms of an air embolism include all of the following, EXCEPT (Needs options)pale skin
The diving reflex may allow a person to survive extended periods of submersion in cold water secondary tobradycardia and a slowing of the metabolic rate.
A 30-year-old male was rescued after being lost in the woods for approximately 18 hours. The outside temperature is 30°F. He is immediately placed in the warmed ambulance, where you perform an initial assessment. He is unconscious, pale, and apneic. After initiating artificial ventilations, you should assess for a carotid pulse for up to 45 seconds
When a warm hand is immersed in water that is 70°F, heat is transferred from the hand to the water through a process calledconduction
Heat loss from the body through respiration occurs whenwarm air is exhaled into the atmosphere
When assessing a hypothermic patient, you should palpate for a carotid pulse for approximately __________ seconds before determining that he or she is pulseless.30 to 45
The venom of a black widow spider is toxic to thenervous sytem
Hypothermia occurs when the core body temperature falls below95°F
Hyperthermia is MOST accurately defined as a condition in whichthe body is exposed to more heat than it can lose
The transfer of heat to circulating air, such as when cool air moves across the body's surface, is called:convection
The body's natural cooling mechanism, in which sweat is converted to a gas, is called:evaporation
When a warm hand is immersed in water that is 70°F, heat is transferred from the hand to the water through a process called:conduction
All of the following snakes are pit vipers, EXCEPT for the: a) cottonmouth b) copperhead c) coral snake d) rattlesnakec) coral snake