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CPN: Pediatric Oncology

Caring for children with cancer demands specialized knowledge and vigilance. These CPN questions cover common childhood cancers, chemotherapy care, neutropenic precautions, and supportive care — each with a full rationale.

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  • 📖 Full rationales — why every option is right or wrong

Every CPN question is written to the current exam outline for quick learning and a clear pass strategy.

Written and reviewed by the LexPort exam-prep team, led by our Founder & Exam-Prep Lead. LexPort builds certification practice questions — this is exam-preparation material, not medical advice. Last reviewed August 2026.

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Test yourself: CPN: Pediatric Oncology

Three CPN practice questions on cpn: pediatric oncology — tap an answer for instant feedback. The app has 2,200+, timed and scored.

Question 1

134 of 150. A pediatric patient presents for a well-child visit. The child has no health conditions, but lives with an older sibling receiving induction chemotherapy for leukemia. The parents ask if the healthy child can receive the scheduled MMR and varicella vaccines today. What is the best response?

Why C is the answer

Healthy children who reside with severely immunosuppressed contacts should receive routine live vaccines like MMR and varicella. This practice establishes a protective barrier of immunity around the vulnerable family member. The MMR vaccine virus is not transmitted to contacts. While the varicella vaccine virus can theoretically be transmitted if the vaccinated child develops a rash, the risk is minimal compared to the danger of bringing wild-type varicella into the home. Option A and Option D are incorrect because withholding the vaccines increases the likelihood that the healthy child will contract a wild-type infection and infect the sibling. Option B is incorrect because routine masking is not required following vaccination, as respiratory transmission of these vaccine strains is not a clinical concern.

🔑 Key takeaway

Healthy children living with immunosuppressed contacts should receive live vaccines to provide protective household herd immunity.

Question 2

9 of 150. A 16-year-old oncology patient expresses anger at God following a recent relapse of acute lymphoblastic leukemia. The parents are currently out of the room getting lunch. Which action should the nurse take?

Why A is the answer

Expressing anger at a higher power after a devastating medical setback is a clear indicator of spiritual distress. Adolescents are developing their own belief systems and have the right to adolescent autonomy in seeking spiritual support. Offering a chaplain directly addresses this need. Option B minimizes the patient's profound distress by brushing it off as just a normal phase, which shuts down further therapeutic communication. Option C breaches the adolescent's trust and confidentiality without any indication of an immediate safety risk. Option D inappropriately medicalizes a spiritual and existential crisis; while depression can co-occur with chronic illness, jumping straight to a psychiatric consult ignores the primary spiritual nature of the patient's statement.

🔑 Key takeaway

Adolescents experiencing spiritual distress related to their illness should be directly offered chaplaincy services to support their autonomy.

Question 3

15 of 150. A 7-year-old sibling wants to see his 10-year-old brother who just died from leukemia. The deceased child has significant mottling and cooling of the skin.

Why B is the answer

Siblings generally benefit from seeing the deceased to process the loss, but they need developmentally appropriate preparation regarding how the body looks and feels. Option B is correct because explaining the cold skin and mottling reduces fear and shock. Option A is incorrect because excluding siblings can cause feelings of isolation and complicated grief. Option C is incorrect because while covering some equipment is helpful, completely hiding the child prevents meaningful closure. Option D is incorrect because while parental input is valuable, the nurse must actively facilitate the sibling preparation process rather than just deferring to grieving parents.

🔑 Key takeaway

Siblings should be allowed to view the body after receiving age-appropriate preparation.

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Question 1

7 of 15. A 10-year-old child with relapsed acute lymphoblastic leukemia is admitted for palliative care. The parents ask the nurse practitioner if a new clinical trial will cure their child. What is the most appropriate response?

  • A) I see you are hoping for a cure, but we must focus on comfort.
  • B) Please tell me what the oncology team has shared with you about this trial.
  • C) Clinical trials are experimental and rarely provide a cure for relapsed acute lymphoblastic leukemia.
  • D) We should schedule a formal family meeting with the oncologist to discuss trial details.

💡 Key Takeaway

Always assess a family's baseline understanding before delivering complex or difficult prognostic information.

Show rationale

When discussing a poor prognosis or addressing unrealistic expectations in a palliative setting, the first step is to assess the family's current understanding. Using the SPIKES protocol, this aligns with assessing perception. Option B correctly invites the parents to share what they already know, providing a baseline for honest and compassionate communication. Option A dismisses the parents' inquiry prematurely without exploring their understanding, which can damage rapport. Option C delivers blunt medical information without first assessing readiness or prior knowledge, which can be overwhelming and perceived as insensitive. Option D defers the conversation entirely; while a family meeting may be necessary later, the immediate need is to explore the parents' current thoughts and feelings to guide the next steps in the prognostic discussion.

Question 2

7 of 15. A 10-year-old child with relapsed acute lymphoblastic leukemia is admitted for palliative care. The parents ask the nurse practitioner if a new clinical trial will cure their child. What is the most appropriate response?

  • A) I see you are hoping for a cure, but we must focus on comfort.
  • B) Please tell me what the oncology team has shared with you about this trial.
  • C) Clinical trials are experimental and rarely provide a cure for relapsed acute lymphoblastic leukemia.
  • D) We should schedule a formal family meeting with the oncologist to discuss trial details.

💡 Key Takeaway

Always assess a family's baseline understanding before delivering complex or difficult prognostic information.

Show rationale

When discussing a poor prognosis or addressing unrealistic expectations in a palliative setting, the first step is to assess the family's current understanding. Using the SPIKES protocol, this aligns with assessing perception. Option B correctly invites the parents to share what they already know, providing a baseline for honest and compassionate communication. Option A dismisses the parents' inquiry prematurely without exploring their understanding, which can damage rapport. Option C delivers blunt medical information without first assessing readiness or prior knowledge, which can be overwhelming and perceived as insensitive. Option D defers the conversation entirely; while a family meeting may be necessary later, the immediate need is to explore the parents' current thoughts and feelings to guide the next steps in the prognostic discussion.

Question 3

43 of 150. The parent of a 12-year-old male questions the need for the HPV vaccine, stating it only prevents cervical cancer. Which response provides the most accurate clinical information?

  • A) It also prevents testicular and prostate cancers in males.
  • B) It also prevents colorectal and pancreatic cancers in males.
  • C) It also prevents oropharyngeal and anal cancers in males.
  • D) It also prevents esophageal and gastric cancers in males.

💡 Key Takeaway

HPV vaccination prevents oropharyngeal, anal, and penile cancers in males in addition to cervical cancer in females.

Show rationale

The HPV vaccine is highly effective at preventing several cancers in males, most notably oropharyngeal and anal cancers, as well as penile cancer, making C correct. Option A is incorrect because HPV is not linked to testicular or prostate cancers. Option B is incorrect because colorectal and pancreatic cancers are not caused by the human papillomavirus. Option D is incorrect because esophageal and gastric cancers are not associated with HPV infection. Educating parents on the broad cancer prevention benefits beyond cervical cancer is a critical health promotion strategy for increasing male vaccination rates.

Question 4

41 of 150. A 16-year-old patient with metastatic osteosarcoma asks if the recent scan shows the tumor is growing, despite parents previously asking the team to delay sharing bad news. How should the provider respond?

  • A) I need to speak with your parents first before we discuss your scan results.
  • B) The tumor has grown, and we need to discuss transitioning to palliative care soon.
  • C) Before we talk about the scan, what are you hoping or worrying it shows?
  • D) Your parents asked me to wait, but you have the right to know everything.

💡 Key Takeaway

Assess an adolescent's readiness and perspective before disclosing bad news, balancing autonomy with parental involvement.

Show rationale

When an adolescent directly asks about their prognosis, providers must balance respect for parental wishes with the adolescent's developing autonomy and right to information. The best approach is to assess the adolescent's readiness and current understanding before disclosing facts. Option C explores the patient's thoughts, providing crucial context for how to proceed collaboratively. Option A dismisses the adolescent's direct question, which can destroy trust and increase anxiety. Option B delivers bad news abruptly without first assessing the patient's emotional state or preparing them for the information. Option D inappropriately triangulates the patient against their parents, creating unnecessary family conflict during a vulnerable time, rather than facilitating a supportive shared decision-making environment.

Question 5

118 of 150. The parents of an 8-year-old report the child has become withdrawn and refuses to talk about their sibling's recent leukemia diagnosis. The nurse wants to promote healthy coping without forcing verbal communication. Which strategy should the nurse recommend?

  • A) Encouraging the child to practice a daily silent meditation session.
  • B) Teaching the child to use a cognitive behavioral reframing app.
  • C) Providing the child with a dedicated sketchbook for art journaling.
  • D) Prompting the child to write a detailed letter to siblings.

💡 Key Takeaway

Art journaling provides a developmentally appropriate, non-verbal coping outlet for school-aged children experiencing secondary trauma.

Show rationale

Art journaling is a highly effective, developmentally appropriate strategy for school-aged children who are withdrawn or lack the advanced verbal vocabulary needed to articulate complex grief or secondary trauma. It provides a safe, non-verbal outlet for processing difficult emotions. Encouraging a daily silent meditation session requires an advanced level of abstract focus and stillness that an eight-year-old typically lacks, leading to frustration. A cognitive behavioral reframing app is too advanced for this age group and requires the active verbal and cognitive engagement the child is currently avoiding. Prompting the child to write a detailed letter forces the direct verbal communication that the child is actively resisting. By utilizing drawing, the nurse allows the child to externalize their internal stress at their own pace without the pressure of finding the right words.

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CPN · Exam Simulator

7 of 15. A 10-year-old child with relapsed acute lymphoblastic leukemia is admitted for palliative care. The p…

A) I see you are hoping for a cure, but we
B) Please tell me what the oncology team ha
C) Clinical trials are experimental and rar
D) We should schedule a formal family meeti
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