Exam 4- nclex questions
Liquefaction necrosis Alkalis, such as lye, cause a liquefaction necrosis, and exposure to fat results in formation of a soapy coagulum. Thick, leathery eschar forms with exposure to acids or heat. Intact blisters indicate a partial-thickness thermal injury. Cherry-red, firm tissue can occur as a result of thermal injury.
A client sustained a burn from cutaneous exposure to lye. At the site of injury, copious irrigation to the site was performed for 1 hour. On admission to the hospital emergency department, the nurse assesses the burn site. Which findings would indicate that the chemical burn process is continuing? Eschar Intact blisters Liquefaction necrosis Cherry-red, firm tissue
36% According to the rule of nines, with the initial burn, the anterior half of the head equals 4.5%, the upper half of the anterior torso equals 9%, and the lower half of both arms equals 9%. The subsequent burn included the posterior half of the head, equaling 4.5%, and the upper half of posterior torso, equaling 9%. This totals 36%.
An adult client was burned in an explosion. The burn initially affected the client's entire face (anterior half of the head) and the upper half of the anterior torso, and there were circumferential burns to the lower half of both arms. The client's clothes caught on fire, and the client ran, causing subsequent burn injuries to the posterior surface of the head and the upper half of the posterior torso. Using the rule of nines, what would be the extent of the burn injury? 18% 24% 36% 48%
Gastric lavage The client who has sustained chemical burns to the esophagus is placed on NPO status, is given IV fluids for replacement and treatment of possible shock, and is prepared for esophagoscopy and barium swallow to determine the extent of damage. Laboratory studies also may be prescribed. A nasogastric tube may be inserted, but gastric lavage and emesis are avoided to prevent further erosion of the mucosa by the irritating substances that these treatments involve.
The emergency department nurse is caring for a client who has sustained chemical burns to the esophagus after ingestion of lye. The nurse reviews the health care provider's prescriptions and should plan to question which prescription? Gastric lavage Intravenous (IV) fluid therapy Nothing by mouth (NPO) status Preparation for laboratory studies
Immobilization of the affected leg Autografts placed over joints or on the lower extremities after surgery often are elevated and immobilized for 3 to 7 days. This period of immobilization allows the autograft time to adhere to the wound bed. Getting out of bed, going to the bathroom, and placing the grafted leg dependent would put stress on the grafted wound.
The nurse is caring for a client following an autograft and grafting to a burn wound on the right knee. What would the nurse anticipate to be prescribed for the client? Out-of-bed activities Bathroom privileges Immobilization of the affected leg Placing the affected leg in a dependent position
Heart rate of 95 beats/minute When fluid resuscitation is adequate, the heart rate should be less than 120 beats/minute, as indicated in option 2. In addition, adequacy of fluid volume resuscitation can be evaluated by determining if urine output is at least 30 mL/hour, peripheral pulses are +2 or better, and the client is oriented to client, place, and time.
The nurse is evaluating fluid resuscitation attempts in the burn client. Which finding indicates adequate fluid resuscitation? Disorientation to time only Heart rate of 95 beats/minute +1 palpable peripheral pulses Urine output of 30 mL over the past 2 hours
Leave the dressing intact for 3 to 5 days. After surgery, graft sites are immobilized with bulky cotton pressure dressing for 3 to 5 days to allow vascularization, or "take," of the newly grafted skin. Dressings should not be disturbed. Elevation and complete rest of the grafted area is required to allow blood vessels to connect the graft with the wound bed. Any activity that might cause movement of the dressing against the body and separation of the graft from the wound is prohibited, such as application of an ice pack. Additionally, cold promotes vasoconstriction.
The nurse is planning care for a client returning from the operating room after having an autograft applied to the right lower extremity. Which nursing intervention is focused on promoting graft "take"? Monitor temperature every 4 hours. Leave the dressing intact for 3 to 5 days. Maintain the right lower extremity in a dependent position. Apply an ice pack to the site to decrease edema formation.
Full thickness Full-thickness burns involve the epidermis, the full dermis, and some of the subcutaneous fat layer. The burn appears to be a tan or fawn color, with skin that is hard, dry, and inelastic. Edema is severe, and the accumulated fluid compresses tissue underneath because of eschar formation. Some nerve endings have been damaged, and the area may be insensitive to touch, with little or no pain.
A client is admitted to the hospital emergency department after receiving a burn injury in a house fire. The skin on the client's trunk is tan, dry, and hard. It is edematous but not very painful. The nurse determines that this client's burn should be classified as which type? Superficial Full-thickness Deep partial-thickness Partial-thickness superficial
9600 mL of lactated Ringer's solution The Parkland (Baxter) formula is 4 mL of lactated Ringer's solution × kg body weight × percent burn. The calculation is performed as follows: 4 mL × 60 kg × 40 = 9600 mL.
A 60-kg client has sustained third-degree burns over 40% of the body. Using the Parkland (Baxter) formula, the minimum fluid requirements are which during the first 24 hours after the burn? 1200 mL of 5% dextrose in water solution 2400 mL of 0.45% normal saline solution 4800 mL of 0.9% normal saline solution 9600 mL of lactated Ringer's solution
Autograft A full-thickness burn will require terminal coverage with an autograft-the client's own skin. Biobrane is porcine collagen bonded to a silicone membrane, which is temporary and lasts anywhere from 10 to 21 days. Homografts (cadaveric skin) and xenografts (pigskin) provide temporary coverage of the wound by acting as a dressing for up to 3 weeks before rejecting.
A client is diagnosed with a full-thickness burn. What should the nurse anticipate will be used for final coverage of the client's burn wound? Biobrane Autograft Homograft Xenograft
Gastric pH of 3 The gastric pH should be maintained at 7 or greater with the use of prescribed antacids and histamine 2 (H2) receptor-blocking agents. Lowered pH (to the acidic range) in the absence of food or tube feedings can lead to erosion of the gastric lining and ulcer development. Absence of discomfort and bleeding (guaiac-negative drainage) are normal findings. The client's bowel sounds may be expected to be hypoactive in the absence of oral or NG tube intake.
A client is on nothing by mouth (NPO) status and has a nasogastric (NG) tube in place after suffering bilateral burns to the legs. The nurse determines that the client's gastrointestinal (GI) status is least satisfactory if which finding is noted on assessment? Gastric pH of 3 Absence of abdominal discomfort GI drainage that is guaiac negative Presence of hypoactive bowel sounds
Pink or red color Superficial burns are pink or red without any blistering. The skin blanches to touch, may be edematous and painful, and heals on its own, usually within 1 week. A white color characterizes deep partial-thickness burns. Weeping blisters characterize partial-thickness superficial burns. Deep full-thickness burns are associated with insensitivity to pain and cold.
A client is seen in the ambulatory care clinic for a superficial burn to the arm. On assessing the skin at the burn injury, what will the nurse observe? White color Pink or red color Weeping blisters Insensitivity to pain and cold
Keep the client on NPA status The client should be maintained on NPO status because burn injuries frequently result in paralytic ileus. The client also should be told that fluids could cause vomiting because of the effect of the burn injury on gastrointestinal tract functioning. Mouth care should be given as appropriate to alleviate the sensation of thirst.
A client who is being evaluated for thermal burn injuries to the arms and legs complains of thirst and asks the nurse for a drink. Which action by the nurse is most appropriate? Allow the client to have full liquids. Give the client small glasses of clear liquids. Order the client a full meal tray with extra liquids. Keep the client on NPO (nothing by mouth) status.
Urine output Successful or adequate fluid resuscitation in the client is signaled by stable vital signs, adequate urine output, palpable peripheral pulses, and clear sensorium. However, the most reliable indicator for determining adequacy of fluid resuscitation, especially in a client with burns, is the urine output. For an adult, the hourly urine volume should be 30 to 50 mL.
The nurse is administering fluids intravenously as prescribed to a client who sustained superficial partial-thickness burn injuries of the back and legs. In evaluating the adequacy of fluid resuscitation, the nurse understands that which assessment would provide the most reliable indicator for determining the adequacy? Vital signs Urine output Mental status Peripheral pulses
Elevated hematrocrit levels The resuscitation/emergent phase begins at the time of injury and ends with the restoration of capillary permeability, usually at 48 to 72 hours following the injury. During the resuscitation/emergent phase, the hematocrit level increases to above normal because of hemoconcentration from the large fluid shifts. Hematocrit levels of 50% to 55% (0.50 to 0.55) are expected during the first 24 hours after injury, with return to normal by 36 hours after injury. Initially, blood is shunted away from the kidneys and renal perfusion and glomerular filtration are decreased, resulting in low urine output. The burn client is prone to hypovolemia and the body attempts to compensate by increased pulse rate and lowered blood pressure. Pulse rates are typically higher than normal, and the blood pressure is decreased as a result of the large fluid shifts
The nurse is caring for a client who sustained superficial partial-thickness burns on the anterior lower legs and anterior thorax. Which finding does the nurse expect to note during the resuscitation/emergent phase of the burn injury? Decreased heart rate Increased urinary output Increased blood pressure Elevated hematocrit levels
The period from the time the burn was incurred to the time when the client is considered physiologically stable The emergent phase of burn care generally extends from the time the burn injury is incurred until the time when the client is considered physiologically stable. The acute phase lasts until all full-thickness burns are covered with skin. The rehabilitation period lasts approximately 5 years for an adult and includes reintegration into society.
The nurse is caring for a client who was admitted to the burn unit after sustaining a burn injury covering 30% of the body. What is the most appropriate time frame for the emergent phase? The entire period of time during which rehabilitation occurs The period from the time the client is stable to the time when all burns are covered with skin The period from the time the burn was incurred to the time when the client is admitted to the hospital The period from the time the burn was incurred to the time when the client is considered physiologically stable
High pressure alarm keeps sounding on the ventilator A client with a circumferential burn of the entire trunk likely will be on a ventilator because of the potential for breathing to be affected by this injury. The high pressure alarm will sound on the ventilator when there is any kind of obstruction. If the chest cannot expand due to restriction by eschar and increasing edema, this results in obstruction.
The nurse is caring for a client with full-thickness circumferential burns of the entire trunk of the body. Which finding suggests that an escharotomy may be necessary? Pallor of all extremities Pulse oximetry reading of 93% Peripheral pulses are diminished High pressure alarm keeps sounding on the ventilator
Hypertrophy of collagen fibers Keloids are visible as excessive scar formation and result from hypertrophy of collagen fibers. Nerves conduct sensory and motor impulses from the skin. The vasculature provides blood vessels with nourishment and assists in thermoregulation. Subcutaneous tissue provides for heat insulation, mechanical shock absorption, and caloric reserve.
The nurse is planning care for a client who suffered a burn injury and has a negative self-image related to keloid formation at the burn site. The keloid formation is indicative of which condition? Nerve damage Hypertrophy of collagen fibers Compromised circulation at the burn site Increase in subcutaneous tissue at the burn site
Return of distal pulses Escharotomies are performed to relieve the compartment syndrome that can occur when edema forms under nondistensible eschar in a circumferential third-degree burn. The escharotomy releases the tourniquet-like compression around the arm. Escharotomies are performed through avascular eschar to subcutaneous fat. Although bleeding may occur from the site, it is considered a complication rather than an anticipated therapeutic outcome. Usually, direct pressure with a bulky dressing and elevation control the bleeding, but occasionally an artery is damaged and may require ligation. Escharotomy does not affect the formation of edema. Formation of granulation tissue is not the intent of an escharotomy
The nurse is preparing to care for a burn client scheduled for an escharotomy procedure being performed for a third-degree circumferential arm burn. The nurse understands that which finding is the anticipated therapeutic outcome of the escharotomy? Return of distal pulses Brisk bleeding from the site Decreasing edema formation Formation of granulation tissue
