an infection in a central venous access device is not eliminated by giving antibiotics through the catheter how might bacterial glycocalyx contribute
Logo

Nursing Elites

NCLEX-PN

NCLEX PN Exam Cram

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?

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. A client has been receiving cyanocobalamin (B12) injections for the past 6 weeks. Which laboratory finding indicates that the medication is having the desired effect?

Correct answer: D

Rationale: Cyanocobalamin is a B12 medication used for pernicious anemia. A reticulocyte count of 1% indicates the desired effect of the medication, as reticulocytes are immature red blood cells that increase in response to B12 therapy, improving anemia. Neutrophils, basophils, and monocytes are white blood cells and are not directly influenced by B12 injections, making them incorrect choices.

3. While performing wound care to a donor skin graft site, the nurse notes some scabbing at the edges and a black collection of blood. What is the nurse's next action?

Correct answer: C

Rationale: When the nurse notes scabbing at the edges and a black collection of blood, it indicates the presence of debris that needs to be addressed. Leaving the scabbed area alone and applying extra ointment may not address the underlying issue and could lead to complications. Notifying the physician is important in some cases, but immediate action is required to prevent infection in this situation. Gently removing the debris and re-dressing the wound is the correct course of action to promote healing and prevent complications.

4. After administering enoxaparin (Lovenox) subcutaneously into the abdomen, which action should the nurse take?

Correct answer: C

Rationale: After administering a subcutaneous injection of enoxaparin (Lovenox) into the abdomen, the nurse should remove the needle and engage the needle safety device. Rubbing the injection site after the needle is withdrawn is not recommended as it may cause irritation and bruising. Having the client maintain a side-lying position for at least five minutes is unnecessary for a subcutaneous injection into the abdomen. Applying heat to the injection site is not indicated after administering enoxaparin subcutaneously; it could increase the risk of bleeding or bruising at the injection site.

5. The nurse is caring for a 44-year-old client diagnosed with hypoparathyroidism. Which electrolyte imbalance is closely associated with hypoparathyroidism?

Correct answer: A.

Rationale: The correct answer is Hypocalcemia. In hypoparathyroidism, where the parathyroid glands are not producing sufficient parathyroid hormone, calcium levels become inadequate. This leads to hypocalcemia, characterized by symptoms such as muscle spasms, anxiety, seizures, hypotension, and congestive heart failure. Hyponatremia and hyperkalemia are not typically associated with hypoparathyroidism. While hyperphosphatemia can be seen in hypoparathyroidism due to decreasing calcium levels, the question specifically asks about the primary electrolyte imbalance closely related to hypoparathyroidism, which is hypocalcemia.

Similar Questions

A mother brings her 13-month-old child with Down Syndrome to a pediatric clinic reporting muscle weakness and poor movement. The child's reflexes are noted to be diminished. Which action should the nurse take first?
What is the most common cause of acute renal failure?
While Fluorouracil (5FUĀ®) is being infused, a client complains of burning at the IV site. What should the nurse do first?
Which instruction should be given in a health education class regarding testicular cancer?
When a client informs the nurse that he is experiencing hypoglycemia, the nurse provides immediate intervention by providing:

Access More Features

NCLEX PN Basic
$69.99/ 30 days

  • 5,000 Questions with answers
  • Comprehensive NCLEX coverage
  • 30 days access

NCLEX PN Premium
$149.99/ 90 days

  • 5,000 Questions with answers
  • Comprehensive NCLEX coverage
  • 30 days access

Other Courses