Nursing Elites

1. Melena, the passage of black, tarry stools, suggests bleeding from which source?

• A. The perianal or rectal area
• B. The upper gastrointestinal (GI) tract
• C. The lower GI tract
• D. Hemorrhoids or anal fissures

Correct answer: B

Rationale: Melena indicates bleeding from the upper GI tract. The black, tarry appearance of the stool results from the partial digestion of blood as it passes through the intestines, typically originating from sources like the stomach or duodenum. Lower GI bleeding usually presents as bright red blood in the stool, originating from sources like the colon or rectum. Choices A, C, and D are incorrect because melena specifically points to upper GI bleeding rather than issues in the perianal/rectal area, lower GI tract, or hemorrhoids/anal fissures.

2. What is the typical presentation of pyloric stenosis in infants?

• A. Bilious vomiting
• B. Projectile vomiting
• C. Blood in stools
• D. Failure to thrive

Correct answer: B

Rationale: The correct answer is B: Projectile vomiting. Pyloric stenosis in infants typically presents with projectile vomiting, which is forceful and projective in nature. This occurs due to the obstruction at the pylorus, leading to the stomach being unable to empty properly. Choices A, C, and D are incorrect. Bilious vomiting is more commonly associated with intestinal obstruction, blood in stools can occur in conditions such as necrotizing enterocolitis or allergic colitis, and failure to thrive is a nonspecific finding that can be seen in various pediatric conditions.

3. The school nurse is evaluating the number of school-age children classified as obese. The nurse recognizes that the percentile of body mass index that classifies a child as obese is greater than which?

• A. 50th percentile
• B. 75th percentile
• C. 80th percentile
• D. 95th percentile

Correct answer: D

Rationale: A child with a BMI greater than the 95th percentile is classified as obese, according to standard growth charts used in pediatric practice.

4. Surgery is performed on a child to correct cryptorchidism. The parents understand the reason for the surgery if they tell the nurse this was done to do what?

• A. Prevent damage to the undescended testicle.
• B. Prevent urinary tract infections.
• C. Prevent prostate cancer.
• D. Prevent an inguinal hernia.

Correct answer: A

Rationale: The primary reason for correcting cryptorchidism through surgery is to prevent damage to the undescended testicle, which can lead to infertility and increase the risk of testicular cancer. Prevention of UTIs and prostate cancer are not the primary concerns in this context.

5. The nurse is conducting discharge teaching to an adolescent with a methicillin-resistant Staphylococcus aureus (MRSA) infection. What should the nurse include in the instructions?

• A. Avoid sharing of towels and washcloths
• B. All are applicable
• C. Use bleach when laundering towels and washcloths
• D. Take a daily bath or shower with an antibacterial soap

Correct answer: B

Rationale: Avoiding sharing of towels and washcloths, using bleach when laundering, and taking daily baths with antibacterial soap are critical to prevent the spread of MRSA. Cold water is not effective for laundering in these cases.

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