A 12-year-old male adolescent, recently diagnosed with Hodgkin lymphoma, shows left cervical and supraclavicular lymph node involvement and drenching night sweats. Based on Ann Arbor Classification, the patient is classified as
- A. stage IA
- B. stage IB
- C. stage IIA
- D. stage IIB
Correct Answer: D
Rationale: Involvement of two lymph node regions above the diaphragm with systemic symptoms corresponds to stage IIB.
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Mr. Mendres asks Nurse Rose what causes peptic ulcer to develop. Nurse Rose responds that recent research indicates that peptic ulcers are the result of which of the following?
- A. genetic defect in the gastric mucosa
- B. helicobacter pylori infection
- C. high fat diet
- D. work related stress
Correct Answer: B
Rationale: Recent research suggests that the majority of peptic ulcers are caused by an infection with Helicobacter pylori bacteria. This bacterium weakens the protective mucous coating of the stomach and duodenum, leading to damage from stomach acid. Genetic defects in the gastric mucosa, high fat diet, and work-related stress may exacerbate the condition but are not the primary cause of peptic ulcers. Therefore, the most likely cause based on current understanding is H. pylori infection.
Potential sources of mercury include all of the following EXCEPT
- A. swordfish
- B. old teething powders
- C. quicksilver
- D. milk
Correct Answer: D
Rationale: Mercury is not typically found in milk. It is commonly found in fish, old teething powders, quicksilver, and other sources.
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.
A nurse is palpating a newborn's fontanels. The nurse documents the anterior fontanel is which shape?
- A. Circle
- B. Triangle
- C. Square
- D. Diamond
Correct Answer: A
Rationale: The anterior fontanel, also known as the bregma, is the larger of the two fontanels located on the baby's skull. It is diamond-shaped, with the sutures meeting in the center to create a space that is soft and slightly depressed. While it is diamond-shaped when looking at the intersection of the sutures, when palpated or touched by a nurse, it often feels more circular due to the softness of the fontanel. It is important for nurses to monitor the fontanels for normal closure and development in newborns.
The child who helps to undress, puts 3 words together (subject, verb, object), and handles a spoon well has an age around
- A. 15 mo
- B. 18 mo
- C. 24 mo
- D. 30 mo
Correct Answer: C
Rationale: These milestones are typically achieved around 24 months.