Nursing Elites

1. A client with cancer is admitted to the oncology unit. Stat lab values reveal Hgb 12.6, WBC 6500, K+ 1.9, uric acid 7.0, Na+ 136, and platelets 178,000. The nurse evaluates that the client is experiencing which of the following?

• A. Hypernatremia
• B. Hypokalemia
• C. Myelosuppression
• D. Leukocytosis

Correct answer: B

Rationale: The correct answer is 'Hypokalemia.' The potassium level of 1.9 indicates low potassium levels, a condition known as hypokalemia. The other lab values are within normal ranges: Hgb 12.6, WBC 6500, uric acid 7.0, Na+ 136, and platelets 178,000. Hypernatremia (choice A) refers to high sodium levels, which are not present in this case. Myelosuppression (choice C) is a decrease in bone marrow activity, which is not indicated by the lab values provided. Leukocytosis (choice D) is an increase in white blood cells, which is also not present based on the given values.

2. While the client is receiving total parenteral nutrition (TPN), which lab test should be evaluated?

• A. Hemoglobin
• B. Creatinine
• C. Blood glucose
• D. White blood cell count

Correct answer: C

Rationale: When a client is receiving total parenteral nutrition (TPN), monitoring blood glucose levels is crucial as TPN solutions contain high amounts of glucose. This monitoring helps prevent hyperglycemia or hypoglycemia. Evaluating hemoglobin (choice A) is not directly related to TPN administration. Creatinine (choice B) is more relevant for assessing kidney function. White blood cell count (choice D) is important for evaluating immune function and infection, but not specifically tied to TPN administration.

3. The LPN is teaching a first-time mother about breastfeeding her newborn. Which statement, if made by the mother, would reflect that the teaching had been successful?

• A. "My baby should be having at least 4-6 wet diapers a day until 1 month."?
• B. "It's nice that breastfed babies eat a bit less than formula-fed babies."?
• C. "My baby should be nursing 8-12 times a day during this period."?
• D. "I'm a little nervous about my milk coming in tomorrow. I've heard it's uncomfortable."?

Correct answer: C

Rationale: The correct answer is, '"My baby should be nursing 8-12 times a day during this period."?' This statement indicates successful teaching because newborns should nurse 8-12 times during the newborn period to ensure they receive adequate nutrition and establish a good milk supply. This frequency helps in meeting the baby's demands for growth and development. Choice A is incorrect because while it mentions the appropriate number of wet diapers a day once the mother's milk comes in, it does not reflect successful teaching about breastfeeding frequency. Choice B is incorrect because it discusses feeding amounts in comparison to formula-fed babies, which is not a direct indicator of successful breastfeeding teaching. Choice D is incorrect because it focuses on the mother's concerns about milk coming in, not on understanding the feeding frequency needed for the newborn.

4. The women's health charge nurse is making assignments for the next shift. The unit is short one staff member and will receive a nurse from the medical-surgical unit. Which group of clients should she assign to the medical-surgical nurse?

• A. Total abdominal hysterectomy, bladder suspension with A&P repair, client with breast reduction
• B. C-section planning discharge, post-partum infection, mastectomy
• C. Vaginal delivery of fetal demise, C-section with pneumonia, 32-week gestation with lymphoma
• D. 28-week gestation of bed rest, post-partum with HELLP syndrome, breast reconstruction

Correct answer: A

Rationale: The correct answer includes clients who have undergone surgical procedures typically managed on a medical-surgical unit. Choice A consists of clients who have had elective surgical procedures such as hysterectomy, bladder suspension with A&P repair, and breast reduction, which are commonly treated in a medical-surgical setting. Choices B, C, and D involve clients with various complications related to childbirth, fetal demise, pneumonia, gestational lymphoma, HELLP syndrome, and bed rest, which are more complex cases requiring specialized care beyond medical-surgical nursing.

5. Which laboratory test would be the least effective in diagnosing a myocardial infarction?

• A. AST
• B. Troponin
• C. CK-MB
• D. Myoglobin

Correct answer: A

Rationale: AST, choice A, would be the least effective in diagnosing a myocardial infarction as it is not specific for this condition. Troponin, CK-MB, and myoglobin (choices B, C, and D) are more specific markers for myocardial infarction. Troponin is considered the gold standard due to its cardiac specificity. CK-MB is also specific to the heart, and its isoenzyme levels elevate post-heart damage. Myoglobin, although elevated in myocardial infarction, is not as specific as troponin and CK-MB and can also increase in conditions like burns and muscle trauma. Therefore, AST is the least effective choice for diagnosing a myocardial infarction.

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