Which of the ff causes memory cells to convert to plasma cells?
- A. An organ transplant
- B. Re-exposure to a specific antigen
- C. Release of lymphokines
- D. Initial exposure to an antigen
Correct Answer: B
Rationale: The correct answer is B: Re-exposure to a specific antigen. Memory cells are formed after initial exposure to an antigen. Upon re-exposure to the same antigen, memory cells quickly recognize and respond, converting into plasma cells to produce antibodies. This process is known as secondary immune response.
Incorrect choices:
A: An organ transplant - Organ transplant does not involve the conversion of memory cells to plasma cells.
C: Release of lymphokines - Lymphokines are signaling molecules secreted by immune cells but do not directly cause memory cells to convert to plasma cells.
D: Initial exposure to an antigen - Initial exposure to an antigen leads to the formation of memory cells, not their conversion to plasma cells upon re-exposure.
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Mr. Sison had an above the knee amputation (AKA). He is taught to use crutches while prosthesis is being adjusted. The nurse instruct the client to support her weight primarily on which areas?
- A. axilla
- B. upper arms
- C. elbows
- D. hands
Correct Answer: A
Rationale: The correct answer is A: axilla. When using crutches, weight should primarily be supported on the axilla to prevent nerve and blood vessel damage in the armpit area. Supporting weight on the upper arms (B) can lead to nerve compression and muscle strain. Supporting weight on the elbows (C) can cause nerve damage and discomfort. Supporting weight on the hands (D) can lead to hand and wrist pain and may not provide stable support. Therefore, the axilla is the most appropriate area to support weight while using crutches to ensure safety and comfort for the client.
Which of the ff interventions is implemented for a client with empyema?
- A. Teach the client breathing exercises
- B. Offer assurance that empyema takes less time to resolve
- C. Recommend that the client eat a balanced but light diet
- D. Emphasize the completion of the entire course of drug therapy
Correct Answer: D
Rationale: The correct answer is D: Emphasize the completion of the entire course of drug therapy. Empyema is a serious condition that requires antibiotic treatment. Emphasizing the completion of the entire course of drug therapy is crucial to ensure that the infection is completely eradicated and to prevent the development of drug-resistant strains. Teaching breathing exercises (choice A) may help improve lung function but is not the primary intervention for empyema. Offering assurance that empyema takes less time to resolve (choice B) is incorrect as it can mislead the client about the seriousness of the condition. Recommending a balanced but light diet (choice C) may be beneficial for overall health but is not directly related to treating empyema.
A client with colon cancer requires a permanent colostomy because of the tumor location. After surgery, the client must learn how to irrigate the colostomy. When irrigating, how far into the stoma should the client insert the lubricated catheter?
- A. 0.25” to 0.5”
- B. 2” to 4”
- C. 1” to 1.5”
- D. 5” to 7”
Correct Answer: C
Rationale: The correct answer is C: 1” to 1.5”. When irrigating a colostomy, the client should insert the lubricated catheter about 1” to 1.5” into the stoma. This depth allows for effective irrigation of the colon without causing discomfort or damage. Inserting the catheter too shallow (choice A) may not reach the colon, while inserting it too deep (choices B and D) can cause injury or perforation. Therefore, the optimal depth of 1” to 1.5” ensures proper irrigation while minimizing risks of complications.
A 50-year old male was brought toi the emergency department with a diagnosis of diabetes insipidus. The client had a posterior pituitary tumor. The nursing diagnosis most appropriate for this client is:
- A. fluid volume excess
- B. incontinence, bowel
- C. fluid volume deficit
- D. diarrhea
Correct Answer: C
Rationale: The correct answer is C: fluid volume deficit. In diabetes insipidus, there is an excessive amount of dilute urine excreted, leading to dehydration and fluid volume deficit. The posterior pituitary tumor causes a deficiency in antidiuretic hormone (ADH), which regulates water reabsorption in the kidneys. As a result, the client experiences polyuria and polydipsia, leading to fluid volume deficit. Choices A, B, and D are incorrect because diabetes insipidus does not cause fluid volume excess, incontinence, or diarrhea. The key is to recognize the pathophysiology of diabetes insipidus and its impact on fluid balance.
What does a nurse assess postoperatively in a client with a nasal fracture?
- A. Allergic reaction
- B. Extreme sense of smell
- C. Airway obstruction
- D. Stridor
Correct Answer: C
Rationale: The correct answer is C: Airway obstruction. Postoperatively, a nurse must assess for airway patency in a client with a nasal fracture to ensure proper breathing. Any swelling or bleeding in the nasal area can lead to airway obstruction, which is a critical concern that needs immediate intervention. Choices A, B, and D are incorrect because an allergic reaction, extreme sense of smell, and stridor are not typically associated with postoperative assessment of a nasal fracture. It is crucial to prioritize airway assessment to prevent any complications related to breathing difficulties in this situation.