Nursing Elites

1. An infection in a central venous access device is not eliminated by giving antibiotics through the catheter. How might bacterial glycocalyx contribute to this?

• A. It protects the bacteria from antibiotic and immunologic destruction.
• B. Glycocalyx neutralizes the antibiotic, rendering it ineffective.
• C. It competes with the antibiotic for binding sites on the microbe.
• D. Glycocalyx provides nutrients for microbial growth.

Correct answer: A

Rationale: Bacterial glycocalyx is a viscous polysaccharide or polypeptide slime that covers microbes. It plays a significant role in protecting bacteria by enhancing adherence to surfaces, resisting phagocytic engulfment by white blood cells, and preventing antibiotics from contacting the microbe. Choice A is correct because glycocalyx shields the bacteria from both antibiotics and the immune system, allowing the infection to persist. Choices B, C, and D are incorrect because glycocalyx does not neutralize antibiotics, compete for binding sites with antibiotics, or provide nutrients for microbial growth.

2. The nurse is caring for a client with decreased cardiac output secondary to heart failure with fluid volume overload. The effects of diminished renal perfusion will have which physiologic response?

• A. Diuresis
• B. Increased fluid retention
• C. Elevated bicarbonate level
• D. Paroxysmal idiopathic narcosis

Correct answer: B

Rationale: When there is diminished renal perfusion due to decreased cardiac output, the kidneys receive less blood flow. This leads to a decrease in urine output and an increase in fluid retention, as the kidneys are not able to effectively filter and excrete excess fluid. Elevated bicarbonate level and paroxysmal idiopathic narcosis are not typically associated with diminished renal perfusion in heart failure. Therefore, the correct answer is 'Increased fluid retention.'

3. The client with obsessive-compulsive disorder (OCD) is asking for help with the repetitive behaviors. The nurse knows that these are a method of dealing with:

• A. Fearful situations
• B. Depression
• C. Delusions
• D. Anxiety

Correct answer: D

Rationale: The correct answer is D: Anxiety. Repetitive behaviors in OCD serve as a way for individuals to cope with their anxiety. These behaviors are often performed to reduce the distress caused by obsessive thoughts. Choice A, fearful situations, is incorrect because the behaviors are more related to managing anxiety rather than fear itself. Choice B, depression, is incorrect as OCD behaviors are not typically a method of coping with depression. Choice C, delusions, is also incorrect as these behaviors are not aimed at managing delusional thoughts but rather anxiety in OCD.

4. A female client complains to the nurse at the health department that she has fatigue, shortness of breath, and lightheadedness. Her history reveals no significant medical problems. She states that she is always on a fad diet without any vitamin supplements. Which tests should the nurse expect the client to have first?

• A. peptic ulcer studies
• B. complete blood count, including hematocrit and hemoglobin
• C. genetic testing
• D. hemoglobin electrophoresis

Correct answer: B

Rationale: The correct answer is to perform a complete blood count, including hematocrit and hemoglobin, as the initial tests to assess the client's symptoms related to fatigue, shortness of breath, and lightheadedness. These symptoms can be indicative of anemia, which can be caused by nutritional deficiencies due to fad dieting without vitamin supplements. Peptic ulcer studies, genetic testing, and hemoglobin electrophoresis are not the most appropriate initial tests for the client's presenting symptoms and history. Peptic ulcer studies are not relevant to the client's symptoms. Genetic testing is not indicated based on the client's presentation and history. Hemoglobin electrophoresis is used to diagnose specific types of anemia and is not the first-line test in this scenario. Further testing decisions should be based on the results of the initial tests, the client's history, and other relevant factors.

5. Post thyroidectomy the nurse assesses for complications by performing which of the following assessments?

• A. Accu-Chek
• B. Chvostek's
• C. Ballottement
• D. Ice water colonic

Correct answer: B

Rationale: The correct answer is Chvostek's. A positive Chvostek's and Trousseau's sign is indicative of tetany, which is associated with low calcium levels. This can occur if parathyroid glands are accidentally removed during thyroidectomy. Accu-Chek is a brand of blood glucose monitor used for checking blood sugar levels and is not relevant in this context. Ballottement is a technique used in physical examination to assess for fluid in the body, typically in the abdomen or joints. Ice water colonic is not a standard medical assessment and is not relevant to post-thyroidectomy complications.

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