Nursing Elites

1. A preschooler has successfully completed the test item 'counts 5 blocks' on the Denver II test. This pass is evidence of which of the following developmental concepts?

• A. centration
• B. causality
• C. nonreversibility
• D. conservation

Correct answer: D

Rationale: The ability of a preschooler to move five blocks to a piece of paper and state there are five blocks on the paper is evidence that the preschooler has the ability of conservation. This concept refers to the fact that the quantity of something doesn't change just because the shape, contour, and so on has changed. Five blocks are still five blocks, whether they are lying beside the paper, stacked on the paper, or moved to the paper. Centration is the ability to concentrate on one feature of a situation while neglecting all other aspects. Causality is based on the sequence of events, one event ordinarily following another. Non-reversibility refers to the inability of preschoolers to reverse their operations. They are only able to think forward, not retrace or reverse their thought processes.

2. A client with an ileus is placed on intestinal tube suction. Which of the following electrolytes is lost with intestinal suction?

• A. calcium
• B. magnesium
• C. potassium
• D. sodium chloride

Correct answer: D

Rationale: The correct answer is sodium chloride. Duodenal intestinal fluid is rich in potassium (K+), sodium (Na+), and bicarbonate. When suctioning is used to remove excess fluids due to ileus, it results in the loss of sodium chloride (NaCl) leading to decreased sodium (Na+) levels. Choices A, B, and C are incorrect because calcium, magnesium, and potassium are not typically lost in significant amounts through intestinal tube suction in the context of treating ileus.

3. The LPN participates in a home visit for a client with Type 2 Diabetes who has been taking Metformin for 3 years. The client states that for the past 3 months, they have been trying a vegan diet and experiencing fatigue, confusion, and mood changes. What is a likely cause of the new symptoms?

• A. vitamin B12 deficiency
• B. chronic hypoglycemia
• C. vitamin D deficiency
• D. increased tolerance to Metformin

Correct answer: A

Rationale: The correct answer is vitamin B12 deficiency. Long-term use of Metformin can lead to vitamin B12 deficiency, and a vegan diet is low in vitamin B12. Symptoms of vitamin B12 deficiency include anemia, fatigue, confusion, and mood changes. Chronic hypoglycemia is unlikely in a client with Type 2 Diabetes who has been taking Metformin as it typically causes hyperglycemia. Vitamin D deficiency usually presents with symptoms related to bones and muscles, not confusion and mood changes. Increased tolerance to Metformin does not explain the client's new symptoms, which are more indicative of a nutritional deficiency like vitamin B12.

4. The school nurse is conducting health screenings on schoolchildren. During the screening, she identifies a child with the behavioral characteristics of attention deficit disorder. Which of the following behaviors is consistent with this disorder?

• A. slow speech development
• B. overreaction to stimuli from the surroundings
• C. inability to carry on a conversation
• D. concrete thinking

Correct answer: B

Rationale: The correct answer is 'overreaction to stimuli from the surroundings.' Children with attention deficit disorder often exhibit hypersensitivity to stimuli, leading to overreactions. Slow speech development is not a hallmark of attention deficit disorder; it is more associated with other learning disabilities. While children with this disorder may have difficulty focusing, they can usually carry on a conversation. Concrete thinking is not a common characteristic of attention deficit disorder, as individuals with this disorder may struggle with abstract thinking and impulsivity.

5. A healthcare professional reviewing a client's record notes documentation that the client has melena. How does the healthcare professional detect the presence of melena?

• A. By checking the client's urine for blood
• B. By checking the client's stool for blood
• C. By checking the client's urine for a decrease in output
• D. By checking the client's bowel movements for diarrhea

Correct answer: B

Rationale: Melena' is the term used to describe abnormal black tarry stool that has a distinctive odor and contains digested blood. It usually results from bleeding in the upper gastrointestinal tract and is often a sign of peptic ulcer disease or small bowel disease. The presence of melena is detected by checking the client's stool for blood. Blood in the client's urine, decreased urine output, and diarrhea are not associated with the assessment for melena.

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