Nokea
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.
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A nurse is teaching the mother of an 11-month-old infant how to clean the infant's teeth. The nurse tells the mother to take which action?
- A. Use a small amount of toothpaste and a soft-bristle toothbrush
- B. Use water and a cotton swab and rub the teeth
- C. Use diluted fluoride and rub the teeth with a soft washcloth
- D. Dip the infant's pacifier in maple syrup so that the infant will suck
Correct Answer: C
Rationale: The correct action when cleaning an infant's teeth is to use water and a cotton swab to gently rub the teeth. This method helps in removing any food particles or plaque buildup without the risks associated with toothpaste ingestion. Using a small amount of toothpaste and a soft-bristle toothbrush is not recommended for infants as they may swallow the toothpaste, leading to potential fluoride ingestion issues. Using diluted fluoride and rubbing the teeth with a soft washcloth is unnecessary at this age since infants typically receive fluoride through other sources like formula. Dipping the infant's pacifier in maple syrup is highly inappropriate and poses a significant risk of tooth decay due to the high sugar content, which can harm the infant's teeth.
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.
The nurse is caring for a client scheduled for removal of a pituitary tumor using the transsphenoidal approach. The nurse should be particularly alert for:
- A. Nasal congestion
- B. Abdominal tenderness
- C. Muscle tetany
- D. Oliguria
Correct Answer: A
Rationale: During the removal of a pituitary tumor using the transsphenoidal approach, nasal congestion is a significant concern as it can further obstruct the airway. This can be due to mucosal swelling, bleeding, or edema resulting from the surgery. Nasal congestion requires immediate attention to prevent airway compromise. Abdominal tenderness, muscle tetany, and oliguria are not directly associated with the pituitary gland or the transsphenoidal approach, making them incorrect choices. Abdominal tenderness is more common in abdominal or pelvic surgeries due to intra-abdominal issues. Muscle tetany is related to electrolyte imbalances or neuromuscular disorders, not specific to pituitary surgery. Oliguria is a concern in renal-related conditions, not typically in pituitary tumor surgeries.
The physician has ordered a culture for the client with suspected gonorrhea. The nurse should obtain which type of culture?
- A. Blood
- B. Nasopharyngeal secretions
- C. Stool
- D. Genital secretions
Correct Answer: D
Rationale: A culture for gonorrhea is taken from the genital secretions as gonorrhea primarily affects the genital area. The culture is incubated in a warm environment to promote the growth of Neisseria gonorrhoeae, the bacterium causing gonorrhea. Genital secretions provide a direct sample from the site of infection, increasing the accuracy of diagnosis. Choices A, B, and C are incorrect as they are not suitable specimens for diagnosing gonorrhea. Blood cultures are used to detect bloodstream infections, nasopharyngeal secretions are collected for respiratory infections, and stool cultures are done to identify gastrointestinal infections, none of which are related to gonorrhea.
If the client is receiving peritoneal dialysis and the dialysate returns cloudy, what should the nurse do?
- A. Document the finding
- B. Send a specimen to the lab
- C. Strain the dialysate
- D. Obtain a complete blood count
Correct Answer: B
Rationale: When the dialysate returns cloudy, it could indicate the presence of infection, and sending a specimen to the lab for evaluation is crucial to determine the cause. Documenting the finding alone, as in choice A, may not provide enough information for proper intervention. Straining the dialysate, as in choice C, is not a standard practice and may not help identify the underlying issue. Obtaining a complete blood count, as in choice D, is not directly related to addressing cloudiness in the dialysate. However, the healthcare provider might order a white blood cell count to assess for infection.