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CPN Study Questions 1-100 with Correct Answers

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CPN Study Questions 1-100 with Correct Answers A 6-week-old male infant is brought into the ED by his mother. He has a weeklong history of progressively worsening emesis that is projectile in nature. What is his most likely diagnosis? A. Intussusception. B. Appendicitis. C. Pyloric stenosis...

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  • November 10, 2024
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CPN Study Questions 1-100 with
Correct Answers

A 6-week-old male infant is brought into the ED by his mother. He has a weeklong

history of


progressively worsening emesis that is projectile in nature. What is his most likely

diagnosis?


A. Intussusception.


B. Appendicitis.


C. Pyloric stenosis.


D. Pancreatitis. - ANSWER✔✔-C: Projectile vomiting in a 6 week-old male is the classic

presentation for pyloric stenosis,


obstruction of the pyloric sphincter between the gastric pylorus and the small intestine,

caused by




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hypertrophy and hyperplasia of the circular muscle of the pylorus, which obstructs the

sphincter.


An 8-year-old male has contracted chicken pox (varicella virus). With which of the

following


family members can the child have contact?


A. 20-year-old aunt on chemotherapy.


B. 35-year-old uncle with HIV.


C. 95-year-old grandfather on long-term steroid therapy.


D. 2-year-old brother who has never had varicella but has had the vaccine -

ANSWER✔✔-D: The 2-year-old brother, who has had the vaccine, is likely immune to

varicella, so contact


is safe. All of the other relatives have some form of immunosuppression from infection

(HIV) or


medications (chemotherapy and steroids) and should avoid contact with the patient


A 5-year-old girl has a fever, headache, and complaints of a stiff neck. The physician

suspects


bacterial meningitis. What is the best test culture site to detect the bacteria?


A. Lumbar puncture.


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B. Clean catch urine.


C. Blood culture.


D. Nasal swab. - ANSWER✔✔-A: Lumbar puncture is the method of choice for

detecting the bacteria causing bacterial


meningitis and sending a sample for culture, as meningitis infects the meninges and

bacteria is


present in the cerebrospinal fluid.


A 2-year-old child has severe dental caries in the upper and lower front teeth, posterior

aspects.


What is the most likely cause for this type of caries?


A. Lack of fluoridation in the water.


B. Sleeping with water in a nighttime bottle.


C. Low carbohydrate diet.


D. Sleeping with sugared liquid in nighttime bottle - ANSWER✔✔-D: Caries in the

posterior front teeth is a sign of sleeping with sugared drinks in the


nighttime bottle (such as juice) because fluid pools in the mouth when the child falls to

sleep.




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***Which of the following patients will likely need surgical correction of his/her

fracture?***


A. 10-year-old with humeral head fracture.


B. 5-year-old with tuft fracture of the distal phalanx.


C. 4-year-old with tuft fracture of the toe.


D. 16-year-old with radial head fracture. - ANSWER✔✔-A: Humeral head fractures

usually need open reduction and internal fixation to maintain


proper future functioning. Distal phalanx and toe fractures are treated with splints and

fracture of


the radial head with a sling.


An infant with a chronic respiratory condition should be offered all of the following

vaccines


EXCEPT:


A. Hepatitis A.


B. Hepatitis B.


C. Hepatitis C.


D. Influenza. - ANSWER✔✔-C: A vaccine for Hepatitis C does not currently exist.

Hepatitis A, hepatitis B and influenza

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