Nursing Elites

1. Which of the following birthmarks usually fade or regress as the child gets older?

• A. Hemangiomas
• B. Congenital dermal melanocytosis (i.e., Mongolian spots)
• C. Macular stains
• D. Hemangiomas, congenital dermal melanocytosis (i.e., Mongolian spots), and macular stains

Correct answer: D

Rationale: The correct answer is Hemangiomas, congenital dermal melanocytosis (i.e., Mongolian spots), and macular stains. These three types of birthmarks are known to fade or regress as the child gets older. Hemangiomas are vascular birthmarks that often shrink and disappear over time. Congenital dermal melanocytosis, commonly known as Mongolian spots, usually fade by adolescence. Macular stains, also called salmon patches, tend to lighten and fade as a child grows. The other choices are incorrect because they do not typically fade or regress with age.

2. A patient receiving isoniazid (INH) and rifampin (Rifadin) has a decreased urinary output and decreased sensation in his great toes. Which laboratory values should be assessed?

• A. Hematocrit and hemoglobin
• B. ALT and AST
• C. Urine culture and sensitivity
• D. Erythrocyte count and differential

Correct answer: C

Rationale: In a patient receiving isoniazid (INH) and rifampin (Rifadin) with symptoms of decreased urinary output and decreased sensation in great toes, assessing urine culture and sensitivity is crucial. These symptoms could indicate peripheral neuropathy, a known side effect of isoniazid, and rifampin can cause renal toxicity. Checking for any urinary tract infection or drug-induced nephrotoxicity is important. Choices A, B, and D are incorrect as they do not directly address the symptoms presented by the patient or the potential side effects of the medications mentioned.

3. Which of the following describes the pathophysiology of exercise-induced asthma?

• A. Bronchospasm after exercise
• B. IgE-mediated inflammatory response to antigen
• C. Bronchoconstriction after ingesting high-allergen foods
• D. Increased mucus production due to a genetic mutation

Correct answer: A

Rationale: The correct answer is A: 'Bronchospasm after exercise.' Exercise-induced asthma involves the narrowing of the airways (bronchospasm) triggered by physical activity. This bronchospasm leads to symptoms such as coughing, wheezing, and shortness of breath. Choices B, C, and D are incorrect because exercise-induced asthma is not primarily caused by an IgE-mediated inflammatory response to an antigen, bronchoconstriction after ingesting high-allergen foods, or increased mucus production due to a genetic mutation.

4. Helicobacter pylori (H. pylori) often causes which of the following?

• A. Colon cancer
• B. Hiatal hernia
• C. Peptic ulcer disease
• D. Esophageal varices

Correct answer: C

Rationale: Helicobacter pylori is a bacterium known to cause peptic ulcer disease by weakening the protective lining of the stomach and duodenum, leading to inflammation and ulcers. While chronic H. pylori infection is a risk factor for stomach cancer, it is not directly linked to colon cancer (Choice A), hiatal hernia (Choice B), or esophageal varices (Choice D). Therefore, the correct answer is C.

5. Which of the following statements describes an active cellular membrane exchange process?

• A. Sodium moving out of cells and potassium moving into cells
• B. The movement of water from an area of low solute concentration to an area of high solute concentration
• C. The movement of insulin using a protein to travel across the cell membrane
• D. Oxygen moving across the pulmonary capillaries to an area of high carbon dioxide

Correct answer: A

Rationale: The correct answer is A. In active transport, energy is expended to move substances against their concentration gradient. Sodium moving out of cells and potassium moving into cells is an example of active transport because it requires energy to pump these ions across the cell membrane against their concentration gradients. Choices B, C, and D describe passive processes where substances move along their concentration gradients without the input of energy.

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