HESI LPN
Pediatrics HESI 2023
1. An 8-year-old child diagnosed with meningitis is to undergo a lumbar puncture. What should the nurse explain is the purpose of this procedure?
- A. To measure the pressure of cerebrospinal fluid
- B. To obtain a sample of cerebrospinal fluid for analysis
- C. To relieve intracranial pressure
- D. To assess the presence of infection in the spinal fluid
Correct answer: B
Rationale: A lumbar puncture is performed to obtain a sample of cerebrospinal fluid for analysis. This fluid is then examined for signs of infection, bleeding, or other abnormalities. Measuring the pressure of cerebrospinal fluid is typically done during the procedure itself, but it is not the primary purpose of the lumbar puncture. While a lumbar puncture can indirectly help relieve intracranial pressure by removing excess cerebrospinal fluid, this is not its primary purpose. Assessing the presence of infection in the spinal fluid is part of the analysis that follows the collection of the sample, making it a secondary outcome of the procedure.
2. After clearing the airway of a newborn who is not in distress, what is the most important action for you to take?
- A. Apply free-flow oxygen
- B. Clamp and cut the cord
- C. Keep the newborn warm
- D. Obtain an APGAR score
Correct answer: C
Rationale: Keeping the newborn warm is crucial as newborns are at high risk of hypothermia due to their large body surface area and limited subcutaneous fat. Hypothermia can lead to complications such as respiratory distress, hypoglycemia, and metabolic acidosis. Providing warmth helps maintain the newborn's body temperature and supports physiological processes, promoting overall well-being. Applying free-flow oxygen is not necessary if the newborn is not in distress. Clamping and cutting the cord can be done after addressing the immediate need for warmth. Obtaining an APGAR score is important for assessing the newborn's overall condition but ensuring warmth takes precedence to prevent complications related to hypothermia.
3. What is the first action a healthcare provider should take before administering a tube feeding to an infant?
- A. Irrigate the tube with water.
- B. Offer a pacifier to the infant.
- C. Slowly instill 10 mL of formula.
- D. Place the infant in the Trendelenburg position.
Correct answer: B
Rationale: The correct answer is to offer a pacifier to the infant before administering tube feeding. Offering a pacifier helps stimulate the sucking reflex, preparing the infant for feeding and promoting digestion and comfort. Irrigating the tube with water (Choice A) is not typically the first action before tube feeding and may not be necessary. Slowly instilling formula (Choice C) should only be done after the infant is prepared for feeding. Placing the infant in the Trendelenburg position (Choice D) is not necessary and may not be recommended for tube feeding.
4. During a health assessment of a school-age child, where should the nurse focus more attention based on the child's developmental level?
- A. Infections
- B. Poisonings
- C. Risk-taking behaviors
- D. Accidents and injuries
Correct answer: D
Rationale: During the school-age period, children are active, curious, and engaged in various physical activities, making them more susceptible to accidents and injuries. This developmental stage is characterized by increased motor skills and exploration, leading to a higher risk of unintentional harm. While infections, poisonings, and risk-taking behaviors are also concerns for school-age children, focusing on preventing and addressing accidents and injuries is essential due to their heightened physical activity and curiosity.
5. The nurse is reviewing the laboratory test results of a child diagnosed with disseminated intravascular coagulation (DIC). What would the nurse interpret as indicative of this disorder?
- A. Shortened prothrombin time
- B. Increased fibrinogen level
- C. Positive fibrin split products
- D. Increased platelets
Correct answer: C
Rationale: Positive fibrin split products indicate disseminated intravascular coagulation (DIC), a condition characterized by the widespread formation of blood clots throughout the body. In DIC, clotting factors are consumed, leading to increased fibrin split products. A shortened prothrombin time (Choice A) is not typically seen in DIC as it indicates faster blood clotting, which is not consistent with the pathophysiology of DIC. An increased fibrinogen level (Choice B) is also not a characteristic finding in DIC, as fibrinogen levels may be decreased due to consumption in the formation of clots. Increased platelets (Choice D) are not typically observed in DIC; instead, thrombocytopenia (decreased platelet count) is more common due to their consumption in clot formation.
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