Nokea
Which immunoglobulin is specific to an allergic response?
- A. IgA
- B. IgE
- C. IgB
- D. IgG
Correct Answer: B
Rationale: IgE is the immunoglobulin specific to an allergic response. When an individual is exposed to an allergen, the immune system produces IgE antibodies that bind to mast cells and basophils. Upon re-exposure to the same allergen, these IgE antibodies trigger the release of histamine and other chemicals that cause allergic symptoms such as itching, swelling, and inflammation. IgE is not normally found in high concentrations in the bloodstream unless there is an allergic reaction occurring. Other immunoglobulins like IgA, IgG, and IgM are not specifically associated with allergic responses.
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Which of the following situations increase the risk of lead poisoning in children?
- A. playing in the park with heavy traffic and with many vehicles passing by
- B. playing sand in the park
- C. playing plastic balls with other children
- D. playing with stuffed toys at home
Correct Answer: B
Rationale: Playing in sand at the park can increase the risk of lead poisoning in children because sand can be contaminated with lead particles from various sources such as old paint, industrial pollution, or leaded gasoline residues. When children play in sand, they may accidentally ingest the contaminated particles while handling or playing with the sand. This ingestion can lead to lead poisoning, as even small amounts of lead can be harmful to children's health. Therefore, playing in sand at the park poses a higher risk of lead exposure compared to the other activities listed.
When evaluating the effectiveness of nursing interventions for sinusitis discomfort, which of the following does the nurse assess?
- A. WBC count
- B. Capillary refill
- C. Amount and color of sinus drainage
- D. Comfort level
Correct Answer: C
Rationale: When evaluating the effectiveness of nursing interventions for sinusitis discomfort, assessing the amount and color of sinus drainage is crucial. Changes in these aspects can provide valuable information about the progression of the sinusitis and the effectiveness of the interventions being implemented. Increased or purulent sinus drainage can indicate infection or inflammation, while clearer drainage may suggest improvement. Monitoring these parameters helps the nurse make informed decisions about continuing, modifying, or discontinuing interventions to manage the patient's sinusitis discomfort effectively. Evaluating WBC count, capillary refill, and comfort level are also important assessments in certain situations, but assessing the amount and color of sinus drainage is most directly related to sinusitis symptoms.
A 6 months old boy presents with respiratory distress and feeding difficulty. On examination heart rate is 130/min and there is a pansystolic murmur at left lower sternal border. What is the most likely diagnosis?
- A. Mitral regurgitation
- B. Mitral valve prolapse
- C. Ventricular septal defect
- D. Coarctation of aorta
Correct Answer: C
Rationale: Ventricular septal defect (VSD) commonly presents with a pansystolic murmur and symptoms of congestive heart failure in infancy.
A 3-day-old neonate has a large, soft, painless mass involving the head and neck region that mostly transilluminate; CT scan reveals a cystic mass involving the neck and intrathoracic mediastinum. The BEST modality for treatment of this neonate is
- A. surgical resection
- B. injection sclerosing agent
- C. laser therapy
- D. systemic interferon therapy
Correct Answer: A
Rationale: Surgical resection is the definitive treatment for cystic hygroma.
What are the signs of organ rejection a nurse should closely monitor for when caring for a client after heart transplantation? Choose all that apply
- A. Low white blood cell count
- B. Dyspnea
- C. ECG changes
- D. Fever
Correct Answer: A
Rationale: When caring for a client after heart transplantation, the signs of organ rejection that a nurse should closely monitor for include low white blood cell count and dyspnea.