Nokea
A client is having blood tests and has an elevated lymphocyte level. Based on knowledge of cellular components, what does the nurse know about these cells?
- A. Contain histamine and provide protection during allergic reactions
- B. Are involved in phagocytosis
- C. Provide protection and immunity against foreign substances
- D. Carry hemoglobin and oxygen to body tissues
Correct Answer: C
Rationale: Lymphocytes are a type of white blood cells that play a crucial role in supporting the body's immune system. They are responsible for producing substances that protect the body against infections and foreign substances that could potentially harm the client. Lymphocytes consist of two main types: T cells, which are produced in the thymus, and B cells, which are produced in the lymphatic tissue. Choice A is incorrect because histamine is mainly associated with basophils and mast cells, not lymphocytes. Choice B is incorrect as phagocytosis is a function of other white blood cells such as neutrophils and macrophages. Choice D is also incorrect as carrying hemoglobin and oxygen is a function of red blood cells, not lymphocytes.
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A client is preparing to undergo a cystoscopy for stones. Which of the following statements indicates that the client understands the procedure?
- A. I better drink a lot of fluid now because I won't be able to after the test.
- B. I will probably see a little blood when I urinate.
- C. I will be able to go home after 3 days in the hospital.
- D. I won't need any pain medicine; this probably will not hurt.
Correct Answer: B
Rationale: The correct answer is, 'I will probably see a little blood when I urinate.' During a cystoscopy, a scope is inserted into the client's bladder to inspect structures or remove objects like stones. This procedure is usually performed under local or general anesthesia. It is common for clients to experience a small amount of blood in their urine (hematuria) or have pink-colored urine after the procedure. The other choices are incorrect because drinking a lot of fluid before the test, staying in the hospital for 3 days, and assuming no pain will be experienced are not accurate statements related to a cystoscopy procedure.
Which of the following is a true statement about assessing blood pressure by palpation?
- A. Only the diastolic blood pressure can be assessed through palpation.
- B. The palpation technique is most useful for infants and small children.
- C. Hypertension is a common condition that might need to be assessed through blood pressure palpation.
- D. Only the systolic blood pressure can be assessed through palpation.
Correct Answer: D
Rationale: When assessing blood pressure by palpation, it is important to note that only the systolic blood pressure can be determined accurately using this method. Diastolic blood pressure cannot be reliably assessed through palpation. The palpation technique is particularly useful in situations where traditional blood pressure measurement methods are challenging, such as in infants, small children, or individuals with low blood pressure that is difficult to hear. Hypertension, a common condition characterized by elevated blood pressure, is typically assessed using auscultation rather than palpation. Therefore, the correct statement is that only the systolic blood pressure can be assessed through palpation.
A nurse is caring for an 83-year-old man who has had swallowing difficulties. All of the following interventions are appropriate for this client EXCEPT:
- A. Keep the client in an upright position at all times
- B. Auscultate lung sounds every shift and after feedings
- C. Maintain suction equipment at the client's bedside
- D. Instruct the client about how to perform swallowing exercises
Correct Answer: A
Rationale: When caring for a client with swallowing difficulties, it is crucial to prevent aspiration of food into the lungs. Appropriate interventions include auscultating lung sounds every shift and after feedings to assess for any changes in breathing patterns, maintaining suction equipment at the client's bedside in case of difficulties, and providing instruction on swallowing exercises. Keeping the client in an upright position at all times is not necessary and may not always be feasible or comfortable for the client. This rigid requirement is not part of the standard care protocol for managing swallowing difficulties.
A client with adrenal insufficiency has a potassium level of 7.2 mEq/L. Which of the following signs or symptoms might the client exhibit with this result?
- A. Peaked T waves on the ECG
- B. Muscle spasms
- C. Constipation
- D. A prominent U wave on the ECG
Correct Answer: A
Rationale: A client with hyperkalemia may exhibit peaked T waves on an electrocardiogram. This manifestation is an early sign of high potassium levels, but diagnosis should not be based on this aspect alone. Untreated, hyperkalemia can lead to progressively worsening cardiac instability. Muscle spasms (Choice B) are more commonly associated with hypocalcemia. Constipation (Choice C) is not a typical sign of hyperkalemia. A prominent U wave on the ECG (Choice D) is associated with hypokalemia, not hyperkalemia.
Which nursing intervention is most appropriate to maintain the patency of a client's nasogastric tube?
- A. Maintain a constant connection to low-intermittent suction
- B. Irrigate the tube as per physician's order
- C. Suction the mouth and nose every shift
- D. Perform a daily fecal occult blood sample
Correct Answer: B
Rationale: The correct answer is to irrigate the tube as per physician's order. A client with a nasogastric tube is at risk of the tube kinking or clotting off, which can lead to complications such as abdominal distention or vomiting. To ensure the patency of the tube, the nurse should follow the physician's orders and facility policy to irrigate the tube with water or a solution as needed. Maintaining a constant connection to low-intermittent suction (Choice A) is not typically done to maintain tube patency. Suctioning the mouth and nose every shift (Choice C) is not directly related to maintaining nasogastric tube patency. Performing a daily fecal occult blood sample (Choice D) is unrelated to maintaining the patency of a nasogastric tube.