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A person who had a left CVA and right lower extremity hemiparesis is being instructed by a nurse to use a quad cane. Which of the following is the most appropriate gait sequence?
- A. Place the cane in the patient's left upper extremity, encourage cane, then right lower extremity, then left upper extremity gait sequence.
- B. Place the cane in the patient's left upper extremity, encourage cane, then left lower extremity, then right upper extremity gait sequence.
- C. Place the cane in the patient's right upper extremity, encourage cane, then right lower extremity, then left upper extremity gait sequence.
- D. Place the cane in the patient's right upper extremity, encourage cane, then left lower extremity, then right upper extremity gait sequence.
Correct Answer: A
Rationale: The correct gait sequence for a person with left CVA and right lower extremity hemiparesis using a quad cane is to place the cane in the patient's strong upper extremity, which is the left upper extremity in this case. The correct sequence should be right lower extremity followed by left upper extremity, as this pattern mimics a normal gait pattern. Therefore, Choice A is the correct answer. Choices B, C, and D are incorrect because they do not follow the proper gait sequence for this specific patient's condition. The cane should be placed in the strong upper extremity, and the affected lower extremity should move first to provide stability and support, which is essential in this situation.
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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.
When encountering the significant other of a patient with end-stage AIDS crying during her smoke break, what is the most appropriate action for the nurse to take?
- A. Allow her to grieve by herself.
- B. Tell her to go ahead and cry, after all, your husband’s pretty bad off.
- C. Tell her you realize how upset she is, but you don’t want to talk about it now.
- D. Approach her, offering tissues, and encourage her to verbalize her feelings
Correct Answer: D
Rationale: Approaching the significant other, offering tissues, and encouraging her to verbalize her feelings is the most appropriate action for the nurse to take. Being left alone during the grief process isolates individuals, and they need an outlet for their feelings. By showing empathy and providing support, the nurse can help the significant other cope with her emotions. Choices A, B, and C are inappropriate because they do not offer support or encourage the expression of feelings, which are crucial in such situations.
When placing an IV line in a patient with active TB and HIV, which safety equipment should the nurse wear?
- A. Sterile gloves, mask, and goggles
- B. Surgical cap, gloves, mask, and proper shoewear
- C. Double gloves, gown, and mask
- D. Goggles, mask, gloves, and gown
Correct Answer: D
Rationale: When dealing with a patient with active TB and HIV, the nurse should wear goggles, a mask, gloves, and a gown to protect themselves from potential exposure to infectious agents through respiratory secretions or blood. Surgical cap and proper shoewear are not specifically required for this procedure, making option B incorrect. Double gloving is not necessary in this scenario, hence option C is incorrect. Therefore, the correct choice is D as it includes all the essential protective equipment for this situation.
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?
- A. Contact the physician immediately
- B. Have the patient go for an X-ray for a c-spine work-up
- C. Start an IV on the patient
- D. Position the child's neck in a neutral position
Correct Answer: D
Rationale: In a child with Down Syndrome presenting with muscle weakness and diminished reflexes, an atlanto-axial dislocation is a concern. The priority action is to position the child's neck in a neutral c-spine posture to prevent further injury. This should be done before any movement or manipulation. Contacting the physician should follow to ensure appropriate evaluation and management. Initiating an IV is not indicated unless specifically ordered for a medical reason. Ordering an X-ray for a c-spine work-up should not be the first action as it may involve movement that could exacerbate the condition if an injury is present.
Which type of cells secrete insulin?
- A. alpha cells
- B. beta cells
- C. CD4 cells
- D. helper cells
Correct Answer: B
Rationale: Beta cells are responsible for secreting insulin. Insulin is produced by beta cells in the pancreas and plays a crucial role in regulating blood sugar levels. Alpha cells secrete glucagon, not insulin (Choice A). CD4 cells are a type of immune cell that helps coordinate the immune response (Choice C). Helper cells are a type of immune cell that aids in activating other immune cells (Choice D). Therefore, the correct answer is beta cells.