HESI LPN
HESI Pediatrics Quizlet
1. The nurse is teaching a group of students about myelination in a child. Which statement by the students indicates that the teaching was successful?
- A. Myelination continues into adolescence and beyond.
- B. The process occurs in a cephalocaudal (head-to-toe) pattern.
- C. Myelination decreases the speed of nerve impulses.
- D. Myelination decreases the specificity of nerve impulses.
Correct answer: B
Rationale: The correct answer is B. Myelination occurs in a cephalocaudal (head-to-toe) pattern, improving nerve function progressively. Choice A is incorrect as myelination continues into adolescence and beyond, not just during childhood. Choice C is incorrect because myelination actually increases the speed of nerve impulses rather than decreasing it. Choice D is incorrect as myelination enhances the specificity of nerve impulses, making them more efficient and precise rather than less specific.
2. A client with diabetes mellitus is being taught by a nurse how to perform a capillary blood glucose test. Which of the following instructions should the nurse include in the teaching?
- A. Don sterile gloves after cleansing the site
- B. Puncture the site after cleansing and before the antiseptic dries
- C. Gently wipe the puncture site until a large droplet of blood forms
- D. Hold the finger below the heart level to puncture
Correct answer: B
Rationale: The correct instruction is to puncture the site after cleansing and before the antiseptic dries. This sequence helps ensure proper blood collection without introducing contaminants. Choice A is incorrect because wearing sterile gloves is not necessary for capillary blood glucose testing. Choice C is incorrect as wiping the puncture site can introduce contaminants and alter the blood sample. Choice D is incorrect as holding the finger below the heart level is not required for a capillary blood glucose test.
3. What is the function of the cervix in reproduction?
- A. Accepts and interprets signals of sexual stimuli
- B. Secretes mucus to facilitate sperm transport
- C. Serves as the site for union of ovum and sperm
- D. Receives the penis during intercourse
Correct answer: B
Rationale: The cervix functions in reproduction by secreting mucus that facilitates the transport of sperm to the uterus. Choice A is incorrect because the cervix does not interpret signals of sexual stimuli. Choice C is incorrect as the site for the union of ovum and sperm is the fallopian tube. Choice D is incorrect as the cervix is not involved in receiving the penis during intercourse.
4. When is a depressed client at highest risk for attempting suicide?
- A. Immediately after admission, during one-to-one observation
- B. 7 to 14 days after initiation of antidepressant medication and psychotherapy
- C. Following an angry outburst with family
- D. When the client is removed from the security room
Correct answer: B
Rationale: Depressed clients are at the highest risk of attempting suicide 7 to 14 days after starting antidepressant medication and psychotherapy. During this time, they may start to regain energy but still feel hopeless, which can increase the risk of suicidal ideation and behavior. Choices A, C, and D are incorrect because immediate post-admission, after an angry outburst with family, or when removed from a security room are not specific periods known to be associated with the highest risk of suicide in depressed clients.
5. Tertiary prevention would best be described as:
- A. recovery from physical limitation and psychological regression
- B. health teaching and immunization
- C. rehabilitation of alcoholic and drug dependents
- D. preventing disability and maximum use of remaining capacity
Correct answer: D
Rationale: Tertiary prevention is the stage of prevention that aims at preventing disability and maximizing the use of remaining capacity. Choice A is more aligned with rehabilitation rather than tertiary prevention. Choice B refers to primary prevention by promoting health and preventing diseases. Choice C focuses on rehabilitation specific to alcohol and drug dependence, which is a form of secondary prevention, not tertiary prevention.