Nursing Elites

1. Fat emulsions are frequently administered as a part of total parenteral nutrition. Which statement is true regarding fat emulsions?

• A. They have a high energy-to-fluid-volume ratio.
• B. Even though hypertonic, they are well tolerated.
• C. They are a basic solution due to the addition of sodium hydroxide (NaOH).
• D. The pH is alkaline, making them compatible with most medications.

Correct answer: A

Rationale: The correct statement is that fat emulsions have a high energy-to-fluid-volume ratio. Fat emulsions are formulated in 10%, 20%, and 30% solutions and supply 1.1, 2, and 3 kilocalories, respectively, for each milliliter. In comparison, a milliliter of 5% dextrose only supplies 0.17 kilocalories. Choices B, C, and D are incorrect. Choice B is false because fat emulsions are essentially pH neutral and isotonic, not hypertonic. Choice C is incorrect because fat emulsions are not basic solutions; they are essentially pH neutral. Choice D is incorrect as fat emulsions are not alkaline; they are pH neutral, making them compatible with most medications.

2. The nurse is caring for a client with epilepsy who is being treated with carbamazepine (Tegretol). Which laboratory value might indicate a serious side effect of this drug?

• A. Uric acid of 5 mg/dL
• B. Hematocrit of 33%
• C. WBC 2,000 per cubic millimeter
• D. Platelets 150,000 per cubic millimeter

Correct answer: C

Rationale: Carbamazepine (Tegretol) can suppress the bone marrow, leading to a decrease in the white blood cell count. A laboratory value of WBC 2,000 per cubic millimeter indicates a serious side effect of the drug. Choices A and D are within normal limits, while choice B is at the lower limit of normal. Therefore, choices A, B, and D are incorrect.

3. A woman asks, "How much alcohol can I safely drink while pregnant?"? The nurse's best response is:

• A. "The amount of alcohol that is safe during pregnancy is unknown."?
• B. "Consuming one or two beers or glasses of wine a day is considered safe for a healthy pregnant woman."?
• C. "Drinking three or more drinks on any given occasion is the only harmful type of drinking during pregnancy."?
• D. "You can have a drink to help you relax and get to sleep at night."?

Correct answer: A

Rationale: The correct answer is, "The amount of alcohol that is safe during pregnancy is unknown."? This response is appropriate because there is no known safe amount of alcohol consumption during pregnancy. Consuming any amount of alcohol during pregnancy can pose risks to the developing fetus, leading to conditions like fetal alcohol syndrome, which is a combination of mental and physical abnormalities in infants. Choices B, C, and D are incorrect. Choice B suggests that consuming one or two drinks a day is safe during pregnancy, which is not supported by current medical guidelines. Choice C incorrectly states that only drinking three or more drinks on any given occasion is harmful, when in reality, any amount of alcohol can be harmful to the fetus. Choice D is inappropriate as it suggests that having a drink to relax and sleep is acceptable during pregnancy, which is not the case.

4. A client goes to the mental health center for difficulty concentrating, insomnia, and nightmares. The client reports being raped as a child. The nurse should assess the client for further signs of:

• A. generalized anxiety disorder.
• B. schizophrenia.
• C. post-traumatic stress disorder.
• D. bipolar disorder.

Correct answer: C

Rationale: Given the history of childhood sexual abuse and the presenting symptoms of difficulty concentrating, insomnia, and nightmares, the nurse should assess the client for post-traumatic stress disorder (PTSD). Childhood sexual abuse is strongly associated with adult-onset depression and an increased risk for PTSD. Individuals with PTSD may exhibit re-experiencing symptoms such as flashbacks, nightmares, and heightened reactions to trauma triggers. They may also display emotional numbing, avoidance behaviors, and increased arousal symptoms like difficulty sleeping and hypervigilance. Generalized anxiety disorder (Choice A) is characterized by excessive worry and anxiety about various events or activities, not necessarily tied to a specific trauma. Schizophrenia (Choice B) is a severe mental disorder characterized by distortions in thinking, perception, emotions, and behavior, unrelated to the traumatic event described. Bipolar disorder (Choice D) involves mood swings between depressive and manic episodes, and its symptoms differ from those typically seen in PTSD.

5. A client is admitted to the acute care unit. Initial laboratory values reveal serum sodium of 170meq/L. What behavior changes would be most common for this client?

• A. Anger
• B. Mania
• C. Depression
• D. Psychosis

Correct answer: B

Rationale: The correct answer is 'Mania.' A client with a serum sodium level of 170 meq/L has hypernatremia, which can lead to manic behavior. Hypernatremia is associated with irritability, restlessness, confusion, and in severe cases, manic symptoms. Choices A, C, and D (Anger, Depression, Psychosis) are not typically associated with hypernatremia and are, therefore, incorrect in this context.

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