1. A 15-year-old athlete presents with a fluctuant abscess on the thigh with surrounding cellulitis of 5 cm. Incision and drainage is performed, and culture grows MRSA sensitive to clindamycin, TMP-SMX, and doxycycline. The patient reports a severe sulfa allergy (anaphylaxis). The lab reports that the D-test for clindamycin is positive for inducible resistance.
Which antibiotic is most appropriate?
Answer: C
The positive D-test signals inducible clindamycin resistance, so clindamycin may fail during treatment. The sulfa allergy absolutely contraindicates TMP-SMX. Doxycycline, a tetracycline, is effective against MRSA and, in this adolescent, is a safe, recommended oral option for a mild-to-moderate skin infection. Linezolid is an oxazolidinone reserved for severe or multidrug-resistant infections; using it here would be unnecessarily broad. Thus, doxycycline provides targeted therapy that respects both the resistance markers and the patient’s allergy history.
2. A 4-month-old infant with a history of congenital cytomegalovirus (CMV) infection passed the newborn ABR screen. The parents report the infant startles to loud noises but are concerned about future hearing loss. Which screening plan is most appropriate for this specific viral risk factor?
Answer: D
Congenital CMV is a leading cause of progressive sensorineural hearing loss in childhood. Passing the initial newborn screen does not eliminate this risk, making discharge (Option A) highly inappropriate. These children require frequent, objective monitoring to catch delayed-onset deficits. Diagnostic auditory brainstem response (ABR) or comprehensive behavioral testing is recommended every six months until age three (Option D). Visual reinforcement audiometry monthly (Option B) is excessive and impractical. Annual OAE testing (Option C) is insufficient because it evaluates only the cochlea and is performed too infrequently to catch the rapid progression typical of CMV-related hearing loss.
3. A nurse practitioner is evaluating a 20-month-old child with a suspected receptive language delay. The child is currently playing quietly with a set of blocks on the floor.
Answer: B
To isolate and assess receptive language, the practitioner must evaluate the child's ability to understand and process spoken language without requiring them to speak. Asking the child to follow a simple command, such as handing over an object, perfectly tests receptive language abilities. Option A is incorrect because asking the child to name colors evaluates expressive language skills. Option C is incorrect because observing stacking behavior assesses fine motor development and visual-spatial skills rather than language comprehension. Option D is incorrect because listening to babbling only provides information about expressive speech production and oral motor function.
4. An unvaccinated two-year-old is evaluated in the clinic after travel to a region with active measles. The parents report a three-day history of high fever, coryza, cough, and bilateral conjunctivitis. Which physical assessment finding would confirm the suspected diagnosis before a generalized rash appears?
Answer: C
The child is presenting with the classic prodrome of measles, which includes the "3 Cs": cough, coryza, and conjunctivitis. In an unvaccinated child with relevant travel history, the presence of Koplik spots—small white macules on the buccal mucosa—is pathognomonic and typically appears one to two days before the characteristic maculopapular rash. A strawberry tongue is associated with Kawasaki disease or Group A Streptococcus infections. Vesicular lesions on the posterior oropharynx are indicative of herpangina, usually caused by Coxsackievirus. While cervical lymphadenopathy can occur with many viral infections, it is not a specific, confirmatory finding for early measles like Koplik spots.
5. A 4-year-old is in the emergency department with a 24-hour history of acute abdominal pain. The child is observed lying with knees drawn up, resists abdominal palpation by pushing the nurse's hand away, and refuses to answer questions. The parent states, "She's just being shy around strangers." What is the best interpretation of this child's behavior?
Answer: A
The child’s knees drawn up and resisting palpation are physical guarding, while refusing to speak represents social withdrawal; together these strongly suggest pain. Stranger anxiety does not explain the abdominal guarding or resistance to exam. Regressive behavior would include more immature actions such as bedwetting or thumb-sucking, which are not described. Fear of procedures might cause withdrawal but would not directly cause the localized guarding observed. The parent’s attribution to shyness is a common misinterpretation, but the nurse must recognize guarding and withdrawal as pain behaviors and assess pain accordingly.
6. An 8-year-old child with Down syndrome and a history of frequent morning headaches is being evaluated. The parent mentions the child sleeps in unusual positions with the neck hyperextended. Which element of the BEARS screening tool is most critical to explore next?
Answer: D
The "S" in the BEARS tool stands for Snoring, which is the primary screening question for obstructive sleep apnea (OSA). Children with Down syndrome have a significantly higher risk for OSA due to hypotonia and midface hypoplasia. The cues of frequent morning headaches and sleeping with a hyperextended neck are compensatory mechanisms and symptoms of nighttime hypoxia and hypercapnia. Therefore, option D is the best answer. Option A is incorrect because while neurodevelopmental delays can cause bedtime issues, they do not explain the physical symptoms of headaches and posturing. Option B is incorrect; although OSA can cause daytime sleepiness, assessing for the actual airway obstruction (snoring/apnea) is the more critical immediate step. Option C is incorrect because regularity and duration do not address the clear signs of respiratory compromise during sleep.
7. A 4-year-old child is being assessed using the Denver II. The child fails an item that falls completely to the left of the age line. The child was born at 36 weeks gestation. How should the nurse interpret this specific item?
Answer: C
In the Denver II, a developmental delay is scored when a child fails or refuses an item that falls completely to the left of the age line, meaning that over 90% of children can perform the task at a younger age. This makes option C correct. Option B is incorrect because a developmental caution occurs when the age line intersects the 75th to 90th percentile block of the item. Option A is wrong because failing this item is statistically significant, not a normal variation. Option D is incorrect because the child actively failed the item rather than refusing to attempt it. The history of being born at 36 weeks is a distractor here, as prematurity is not corrected after 24 months of age.
8. A 4-year-old child presents for a well-child exam. The foster parent reports a history of prenatal alcohol exposure and concerns about the child's delayed expressive language. During the physical assessment, which combination of facial features best supports a diagnosis of fetal alcohol syndrome?
Answer: A
To accurately diagnose fetal alcohol syndrome, practitioners look for a specific triad of dysmorphic facial features. Option A correctly identifies this classic triad, which includes a smooth philtrum, a thin upper vermilion border, and short palpebral fissures. These features are highly specific to prenatal alcohol exposure when seen together. Option B is incorrect because a deep philtrum and thick lip are the opposite of what you would expect to find in this condition. Option C is incorrect because while cleft palate can occur in various genetic syndromes, it is not part of the primary diagnostic criteria for fetal alcohol syndrome, and wide-spaced eyes suggest a different pathology. Option D is incorrect because the diagnostic focus is specifically on the thinness of the upper lip, not the lower lip, and up-slanting eyes are more commonly associated with trisomy 21.
9. A 14-year-old gymnast presents for a well-child visit. During the HEEADSSS assessment, she states she recently eliminated all carbohydrates to improve her athletic performance. Which response by the nurse is most appropriate to further evaluate this finding?
Answer: C
In the HEEADSSS framework, the "Eating" component aims to uncover body image concerns and disordered eating patterns, which are high-risk in adolescent athletes. Asking an open-ended question about her weight (C) directly assesses her psychological relationship with food and body image. Asking about her menstrual cycle (A) is a physiological review of systems question, not a primary psychosocial exploration of her eating motives. Asking if she understands the risks (B) is a closed-ended, confrontational approach that hinders rapport and open discussion. Inquiring about the coach's opinion (D) deflects the focus away from the adolescent's internal feelings and self-perception, missing the opportunity to assess her personal body image.
10. While attempting to flush a newly accessed implanted port, the nurse practitioner meets significant resistance and cannot instill the saline. What is the most appropriate initial intervention?
Answer: C
C is correct because the initial step for resistance is to assess for a mechanical obstruction, such as pinch-off syndrome or a kinked catheter, which can often be resolved by having the child change positions, cough, or raise their arms. A is incorrect because applying forceful pressure can rupture the catheter or dislodge a clot into the central circulation, causing severe complications. B is incorrect because thrombolytics like alteplase are reserved for confirmed thrombotic occlusions only after mechanical causes are ruled out. D is incorrect because repositioning the patient or checking the tubing clamps should precede the invasive and painful step of re-accessing the port.
11. A 16-year-old adolescent is arriving for a routine well visit and is being evaluated in the outpatient clinic area. How should the nurse practitioner accurately score the environmental parameter on the Humpty Dumpty Fall Scale for this patient?
Answer: D
The environmental parameter of the Humpty Dumpty Fall Scale assigns one point when a patient is assessed in an outpatient area. Option A is incorrect because four points are reserved for a documented history of falls or an infant placed in a standard bed. Option B is incorrect because three points apply to patients actively using assistive devices or infants placed in cribs. Option C is incorrect because two points are assigned to patients placed in standard inpatient hospital beds, which does not apply to this clinic visit.
12. A 9-year-old child reports a two-day history of right lower quadrant abdominal pain accompanied by anorexia and low-grade fever. The child walks into triage with a hunched posture and guards the abdomen during a brief visual assessment.
Answer: B
The presentation of right lower quadrant pain, anorexia, and guarding strongly suggests appendicitis, which requires multiple resources including labs, imaging, and surgical consultation. Option B is correct because this potential for deterioration and need for multiple diagnostic resources aligns with an urgent triage classification. Option A is incorrect because while the condition is serious, the patient does not require immediate life-saving intervention at the triage desk before a comprehensive surgical workup is completed. Option C is incorrect because non-urgent status ignores the high risk of a surgical abdomen. Option D is incorrect because fast-track is inappropriate for complex abdominal pain.
13. A 30-month-old toddler presents for a routine well-child visit. The parents report the child uses only single words to communicate and cannot point to named body parts when asked.
Answer: C
By 30 months, a child should be combining words into short phrases and easily pointing to multiple body parts. Using only single words indicates an expressive delay, while the inability to point to named body parts indicates a concurrent receptive language deficit. Therefore, the practitioner must screen for a mixed receptive-expressive language delay. Option A is incorrect because it ignores the receptive deficits clearly present in the history. Option B is incorrect because these are significant red flags that require immediate intervention, not reassurance. Option D is incorrect because articulation relates to pronunciation clarity, not vocabulary size or language comprehension.
14. A 15-year-old reports a severe frontal headache that worsens when sitting upright two days after having a lower extremity orthopedic procedure under spinal anesthesia. Which intervention should the nurse anticipate for this specific complication?
Answer: C
A headache that is severe, frontal or occipital, and distinctly worsens upon sitting or standing but relieves when supine is the hallmark of a post-dural puncture headache (PDPH). This is a known complication of spinal anesthesia caused by cerebrospinal fluid leakage. Initial conservative management includes bedrest, aggressive hydration, and caffeine, making Option C the correct choice. Option A is incorrect because while meningitis can cause a severe headache, it typically presents with fever, nuchal rigidity, and photophobia, and a lumbar puncture would exacerbate a PDPH. Option B is incorrect because migraines are not strictly positional and treating this as a standard migraine ignores the recent surgical anesthesia history. Option D is incorrect because an intracranial hemorrhage would likely present with focal neurologic deficits or altered mental status, and the strictly positional nature points directly to PDPH.
15. A parent brings a child who presents for four-year-old well visit to the clinic. The parent reports the child experienced documented anaphylaxis to neomycin following a topical application last year. The child is due for MMR and varicella vaccines. What is the appropriate management?
Answer: D
A history of a severe allergic reaction, such as anaphylaxis, to any component of a vaccine is a true contraindication to receiving it. Both the MMR and varicella vaccines contain trace amounts of neomycin. Option A and Option C are incorrect because split-dosing and rapid desensitization are not standard primary care protocols for these routine live vaccines; the risk of a life-threatening reaction outweighs the benefit. Option B is incorrect because while a mild contact dermatitis from topical neomycin is merely a precaution or false contraindication, a documented systemic anaphylactic reaction strictly prohibits the administration of any vaccine containing that specific allergen.
