The couple with the lowest risk of having a child with sickle cell disease is the one in which the:
- A. Father is HbS and mother is HbS
- B. Father is HbAS and the mother is
- C. Father is HbS and mother is HbAS HbAS
- D. Father is HbA and the mother is HbS
Correct Answer: D
Rationale: Sickle cell disease is an autosomal recessive genetic disorder caused by a mutation in the HBB gene, resulting in the production of abnormal hemoglobin called HbS. In order to have a child with sickle cell disease, both parents must be carriers of the HbS gene.
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Which type of leukemia has been MOST likely developed in a 2-year-old child with Down syndrome in the neonatal period?
- A. ALL
- B. CML
- C. AML M1
- D. AML M6
Correct Answer: D
Rationale: Transient myeloproliferative disorder in neonates with Down syndrome can evolve into AML M6.
Which is true of a Wilms tumor? (Select all that apply.)
- A. It is also referred to as neuroblastoma.
- B. It is most commonly seen between the ages of 2 and 5 years.
- C. It can occur on its own or be associated with congenital anomalies.
- D. It is a slow-growing tumor.
Correct Answer: C
Rationale: Wilms tumor typically occurs in children aged 2-5 years and may be associated with congenital anomalies. It is not the same as neuroblastoma, and its prognosis is generally good with treatment.
Mr. Chua has developed liver cirrhosis. Nurse Bea expects alteration in which laboratory values?
- A. carbon dioxide level
- B. prothrombin time
- C. gastric pH
- D. white blood cell count
Correct Answer: B
Rationale: Liver cirrhosis affects the liver's ability to produce proteins that are important for blood clotting, including prothrombin. Therefore, in a patient with liver cirrhosis, Nurse Bea would expect an alteration in the prothrombin time, which measures the time it takes for the blood to clot. A prolonged prothrombin time indicates impaired blood clotting function, which is commonly seen in patients with liver disease such as cirrhosis. It is an important laboratory value to monitor in patients with liver cirrhosis to assess their risk of bleeding complications.
Patient S is a sexually active adolescent; which of the following instructions would be included in the preventive teaching plan about urinary tract infections?
- A. Drinking acidic juices
- B. Avoiding urinating before intercourse
- C. Wearing nylon underwear
- D. Wiping back to front
Correct Answer: A
Rationale: Drinking acidic juices, such as cranberry juice, can help make the urine more acidic, which can potentially prevent bacteria from sticking to the urinary tract walls and reduce the risk of urinary tract infections. It is important to note that while acidic juices can be beneficial in some cases, they should not be relied upon as the sole preventive measure for UTIs. Other important preventive measures include staying hydrated, practicing good hygiene, and urinating before and after intercourse.
Radiotherapy is an effective modality of treatment in variable pediatric solid tumors. Of the following, the LEAST responsive tumor to radiotherapy is
- A. rhabdomyosarcoma
- B. neuroblastoma
- C. nephroblastoma
- D. osteosarcoma
Correct Answer: D
Rationale: Osteosarcoma is relatively radioresistant compared to other listed tumors.
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