Ch 72 Emergency Nursing- PrepU

Permanent brain injury or death will occur within which timeframe secondary to hypoxia?

3 to 5 minutes Explanation: If the airway is completely obstructed, permanent brain injury or death will occur within 3 to 5 minutes secondary to hypoxia. Air movement is absent in the presence of complete airway obstruction. Oxygen saturation of the blood decreases rapidly because obstruction of the airway prevents entry of air into the lungs. Oxygen deficit occurs in the brain, resulting in unconsciousness, with death following rapidly.

A patient with frostbite to both lower extremities from exposure to the elements is preparing to have rewarming of the extremities. What intervention should the nurse provide prior to the procedure?

Administer an analgesic as ordered. Explanation: During rewarming, an analgesic for pain is administered as prescribed, because the rewarming process may be very painful. To avoid further mechanical injury, the body part is not handled. Massage is contraindicated.

A client has a gaping wound on his forearm that is bleeding profusely. Applying pressure to which pressure point would be most helpful?

Brachial Explanation: The pressure point at the brachial artery would be most appropriate because this site is proximal to the bleeding site. The femoral pressure point would be useful for bleeding in the lower extremities. The radial pressure point would be appropriate for bleeding in the wrist and hands. The subclavian pressure point would be used for bleeding in the upper anterior chest area.

Cricothyroidotomy

Cricothyroidotomy is used in emergencies when endotracheal intubation is either not possible or contraindicated. Examples include airway obstruction from extensive maxillofacial trauma, cervical spine injury, laryngospasm, laryngeal edema after an allergic reaction or extubation, hemorrhage into neck tissue, and obstruction of the larynx.

A client is brought to the emergency department by ambulance. The client is seriously ill and unconscious. No family or friends are present. Which of the following would be most appropriate to do?

Document the client's condition and absence of friends or family for obtaining consent to treatment. Explanation: Consent is needed to examine and treat a client unless he or she is unconscious or in critical condition and unable to make decisions. In this situation, the client is unconscious and no friends or family are around to provide consent to treatment. The nurse should document this fact and provide care. Checking the client's record and asking the ambulance team for information would waste valuable time. Explaining to the client that care will be provided is appropriate even though the client is unconscious, but documentation is essential.

A patient brought to the ED by the rescue squad after getting off a plane at the airport is complaining of severe joint pain, numbness, and an inability to move the arms. The patient was on a diving vacation and went for a last dive this morning before flying home. What is a priority action by the nurse?

Ensure a patent airway and that the patient is receiving 100% oxygen. Explanation: Decompression sickness, also known as "the bends," occurs in patients who have engaged in diving (lake/ocean diving), high-altitude flying, or flying in commercial aircraft within 24 hours after diving. Signs and symptoms include joint or extremity pain, numbness, hypesthesia, and loss of range of motion. A patent airway and adequate ventilation are established before all other interventions, as described previously, and 100% oxygen is administered throughout treatment and transport.

Frostbite

For a client with frostbite, massaging the affected body part is contraindicated. Analgesia is given for pain during the rewarming process because it can be very painful. Ambulation would be restricted. Once rewarmed, sterile gauze or cotton is placed between the affected toes to prevent maceration.

A patient who has accidentally ingested toilet bowel cleaner is brought to the emergency department. Which action would NOT be appropriate for the nurse to implement?

Induced vomiting Explanation: Vomiting is never induced after ingestion of caustic substances (acid or alkaline) such as toilet bowl cleaner because the substance is corrosive to the tissues. Appropriate actions include dilution with milk or water, gastric lavage, and administration of activated charcoal.

Which of the following solutions should the nurse anticipate for fluid replacement in the male patient?

Lactated Ringer's solution Explanation: Replacement fluids may include isotonic electrolyte solutions and blood component therapy. O negative blood is prepared for emergency use in women of childbearing age.Dextrose 5% in water should not be used to replace fluids in hypovolemic patients. Hypertonic saline is used only to treat severe symptomatic hyponatremia and should be used only in intensive care units.

Lyme Disease Stages

Lyme disease has three stages. Stage I presents with a classic "bull's-eye" rash (i.e., erythema migrans) and flulike signs and symptoms that may include chills, fever, myalgia, fatigue, and headache. If antibiotics are not administered, stage II Lyme disease may present within 4 to 10 weeks following the tick bite and may manifest with joint pain, memory loss, poor motor coordination, and meningitis. Stage III can begin anywhere from weeks to more than a year after the bite and has serious long-term chronic sequelae, including arthritis, neuropathy, myalgia, and myocarditis.

Heat stroke symptoms

Manifestations of heat stroke include a temperature of 105 degrees F or greater (40.5 degrees C or greater), anhidrosis (absence of sweating), central nervous system dysfunction (bizarre behavior, delirium, confusion, or coma), hot, dry skin, tachycardia, tachypnea, and hypotension.

When providing care to a client who has experienced multiple trauma, which of the following would be most important for the nurse to keep in mind?

The client is assumed to have a spinal cord injury until proven otherwise. Explanation: With clients experiencing multiple trauma, the nurse must assume that the client has a spinal cord injury until proven otherwise. Multiple trauma clients experience life-threatening injuries to at least two distinct organs or organ systems. Evidence of the trauma may be sparse or absent. Additionally, the injury that may seem the least significant may be the most lethal.

Triage Levels

The patient triaged as emergent must be seen immediately. The triage category of urgent refers to minor illness or injury needing first-aid-level treatment. The triage category of immediate refers to non-acute, non-life threatening injury or illness.

Chemical burn

The priority for any chemical burn is to immediately drench the area with running water, unless the chemical is lye or white phosphorus, which should be brushed off the patient. Antimicrobial ointments, sterile dressings, and tetanus prophylaxis are measures instituted later in the course of treatment, depending on the characteristics of the chemical agent and the size and location of the burn.

Shock

Types of shock include cardiogenic, neurogenic, anaphylactic, and septic. Of these, the most common cause is hypovolemia. Signs and symptoms of shock include cool, moist skin (resulting from poor peripheral perfusion), decreasing blood pressure, increasing heart rate, delayed capillary refill, and decreasing urine volume.

A patient who has accidentally ingested toilet bowel cleaner is brought to the emergency department. Which action would NOT be appropriate for the nurse to implement?

Vomiting is never induced after ingestion of caustic substances (acid or alkaline) such as toilet bowl cleaner because the substance is corrosive to the tissues. Appropriate actions include dilution with milk or water, gastric lavage, and administration of activated charcoal.

Abdominal thrusts

When performing abdominal thrusts, the nurse would place the thumb side of one fist against the client's abdomen in the midline slighlty above the umbilicus and well below the xiphoid process, grasping the fist with the other hand. Then the nurse would press the fist into the client's abdomen with a quick inward and upward thrust such that each new thrust should be a separate and distinct maneuver. The unconscious client is positioned on the back. The client who is conscious should be standing or sitting.

A nurse is completing her annual cardiopulmonary resuscitation training. The class instructor tells her that a client has fallen off a ladder and is lying on his back; he is unconscious and isn't breathing. What maneuver should the nurse use to open his airway?

aw-thrust Explanation: If a neck or spine injury is suspected, the jaw-thrust maneuver should be used to open the client's airway. To perform this maneuver, the nurse should position herself at the client's head and rest her thumbs on his lower jaw, near the corners of his mouth. She should then grasp the angles of his lower jaw with her fingers and lift the jaw forward. The head tilt-chin lift maneuver is used to open the airway when a neck or spine injury isn't suspected. To perform this maneuver the nurse places two fingers on the chin and lifts while pushing down on the forehead with the other hand. The abdominal thrust is used to relieve severe or complete airway obstruction caused by a foreign body. The Seldinger maneuver is a method of percutaneous introduction of a catheter into a vessel.