Nokea
When observing a dressing change by a graduate nurse on a Stage III pressure ulcer to the greater trochanter by the staff nurse, a need for further teaching is indicated after the following observation by the nurse:
- A. The new graduate nurse irrigates the pressure ulcer with 50cc of NS.
- B. The new graduate irrigates the pressure ulcer with half-strength hydrogen peroxide.
- C. The new graduate packs the wound with sterile kerlix soaked in NS.
- D. The new graduate applies a Duoderm dressing over the wound after cleansing.
Correct Answer: B
Rationale: The correct answer is that the new graduate irrigates the pressure ulcer with half-strength hydrogen peroxide. Pressure ulcers should not be cleaned with substances that are cytotoxic, such as hydrogen peroxide or betadine. This can cause further damage to the wound and delay the healing process. Choice A is incorrect because irrigating the pressure ulcer with normal saline is an appropriate practice. Choice C is incorrect because packing the wound with sterile kerlix soaked in normal saline is also an appropriate step. Choice D is incorrect because applying a Duoderm dressing after cleansing is a standard procedure in wound care.
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Following an automobile accident that caused a head injury to an adult client, the nurse observes that the client sleeps for long periods of time. The nurse determines that the client has experienced injury to the:
- A. hypothalamus.
- B. thalamus.
- C. cortex.
- D. medulla.
Correct Answer: A
Rationale: The hypothalamus is responsible for regulating sleep patterns among other functions. Injury to the hypothalamus can disrupt the sleep-wake cycle, leading to excessive sleepiness or changes in sleep patterns. Choices B, C, and D are incorrect as they do not primarily control sleep regulation. The thalamus is involved in relaying sensory information, the cortex is responsible for higher brain functions, and the medulla controls vital functions such as heartbeat and breathing.
When the healthcare provider is determining the appropriate size of a nasopharyngeal airway to insert, which body part should be measured on the client?
- A. corner of the mouth to tragus of the ear
- B. corner of the eye to top of the ear
- C. tip of the chin to the sternum
- D. tip of the nose to the earlobe
Correct Answer: D
Rationale: A nasopharyngeal airway is measured from the tip of the nose to the earlobe. This measurement ensures that the airway is of the correct length to reach the nasopharynx without being too long or too short. Choices A, B, and C are incorrect as they do not provide the appropriate measurement for selecting the correct size of a nasopharyngeal airway. The distance from the corner of the mouth to the tragus of the ear (Choice A) is used to measure for an oropharyngeal airway, not a nasopharyngeal airway. Similarly, the other choices (B and C) do not correlate with the correct measurement of a nasopharyngeal airway.
Which of the following clients requires airborne precautions?
- A. a client with fever, chills, vomiting, and diarrhea
- B. a client suspected of varicella (chickenpox)
- C. a client with abdominal pain and purpura
- D. a client diagnosed with AIDS
Correct Answer: B
Rationale: The correct answer is 'a client suspected of varicella (chickenpox).' Chickenpox is an acute, infectious airborne illness that requires airborne precautions, including wearing a respirator mask for direct contact with the patient. Choices A, C, and D do not typically require airborne precautions. Choice A describes symptoms that may indicate a gastrointestinal infection but do not require airborne precautions. Choice C mentions abdominal pain and purpura, which are not specific to an airborne illness. Choice D, a client diagnosed with AIDS, does not necessitate airborne precautions unless there are additional infectious conditions present that require such measures.
While caring for the following clients, a pediatric nurse tells the charge nurse she must leave due to a family emergency. Which client would the charge nurse reassign to an LPN?
- A. An eight-year-old in diabetic ketoacidosis
- B. A six-year-old in sickle cell crisis
- C. A two-month-old with dehydration
- D. A five-year-old in skeletal traction
Correct Answer: D
Rationale: The correct answer is a five-year-old in skeletal traction. This task is within the scope of practice for an LPN and would need minimal assistance from an RN. The children with diabetic ketoacidosis, sickle cell crisis, and dehydration require close observation, good assessment skills, IVF needs, and medications that would be better managed by an RN. Reassigning the child in skeletal traction to an LPN ensures appropriate care while allowing the RN to focus on the more critical cases.
Which of the following isoenzymes is elevated in a client who has had a myocardial infarction?
- A. CPK-BB
- B. CPK-MM
- C. CPK-MB
- D. CPK-MI
Correct Answer: C
Rationale: CPK-MB is the correct answer as it is elevated in clients who have had a myocardial infarction. CPK-BB is elevated in clients with brain damage, and CPK-MM is elevated in clients with skeletal muscle damage. CPK-MI, mentioned in the rationale, does not exist, making it an incorrect choice.