Nursing Elites

1. Which microorganism is most commonly associated with gastritis?

• A. Syphilis
• B. Cytomegalovirus
• C. H. pylori
• D. Mycobacterium

Correct answer: C

Rationale: H. pylori is the most common microorganism associated with gastritis, present in over 80% of cases. While syphilis, cytomegalovirus, and mycobacterium can also cause gastritis, they are much less prevalent compared to H. pylori. Therefore, the correct answer is H. pylori.

2. While Fluorouracil (5FU®) is being infused, a client complains of burning at the IV site. What should the nurse do first?

• A. Aspirate the IV site for blood return.
• B. Slow the infusion.
• C. Inspect the IV site.
• D. Stop the infusion.

Correct answer: C

Rationale: The correct first action for the nurse is to inspect the IV site. This is important to assess for any signs of infiltration or extravasation, which could be causing the burning sensation. Aspirating the IV site for blood return (Choice A) may not be the initial priority as it does not directly address the client's complaint of burning. Slowing the infusion (Choice B) may help alleviate discomfort but should not be done before inspecting the site. Stopping the infusion (Choice D) may be necessary, but inspecting the site should come first to determine the appropriate course of action.

3. A nurse working in a surgical unit notices a patient experiencing SOB, calf pain, and warmth over the posterior calf. All of these symptoms may indicate which of the following medical conditions?

• A. Patient may have a DVT.
• B. Patient may be exhibiting signs of dermatitis.
• C. Patient may be in the late stages of CHF.
• D. Patient may be experiencing anxiety after surgery.

Correct answer: A

Rationale: The correct answer is that the patient may have a DVT (Deep Vein Thrombosis). SOB (Shortness of Breath), calf pain, and warmth over the posterior calf are classic signs and symptoms of DVT. DVT is a serious condition where a blood clot forms in a deep vein, commonly in the legs. Choices B, C, and D are incorrect because dermatitis does not typically present with these symptoms, late stages of CHF would manifest with other signs, and anxiety after surgery usually does not produce these specific symptoms.

4. A nurse is instructing a patient about the warning signs of Digitalis side effects. Which of the following side effects should the nurse tell the patient are sometimes associated with excessive levels of Digitalis?

• A. Seizures
• B. Muscle weakness
• C. Depression
• D. Anxiety

Correct answer: B

Rationale: The correct answer is 'Muscle weakness.' Palpitations and muscle weakness are commonly associated with excessive levels of Digitalis. Seizures, depression, and anxiety are not typically linked to Digitalis toxicity. Seizures could be more related to other medications or conditions, while depression and anxiety are not commonly reported side effects of Digitalis.

5. 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.

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