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If a patient has severe hyperkalemia, it is possible to administer calcium gluconate intravenously to:
- A. Immediately lower the potassium level by
- B. Prevent transient renal failure (TRF)
- C. Accomplish all of the above
- D. Antagonize the action of K on the heart
Correct Answer: D
Rationale: Correct Answer: D. Antagonize the action of K on the heart
Rationale:
1. Calcium gluconate stabilizes cardiac cell membranes during hyperkalemia.
2. By antagonizing the effects of potassium on the heart, it helps prevent life-threatening cardiac arrhythmias.
3. It does not lower potassium levels immediately or prevent transient renal failure.
4. Administering calcium gluconate is specific to addressing the cardiac effects of hyperkalemia, not renal or overall potassium reduction.
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A nurse is making initial rounds on patients. Which intervention for a patient with poor wound healing should the nurse perform first?
- A. Reinforce the wound dressing as needed with 4 × 4 gauze.
- B. Perform the ordered dressing change twice daily.
- C. Observe wound appearance and edges.
- D. Document wound characteristics.
Correct Answer: C
Rationale: The correct answer is C: Observe wound appearance and edges. This is the first intervention the nurse should perform because assessing the wound's appearance and edges provides crucial information about the healing process and any signs of infection. It helps in determining the next steps in the care plan. Reinforcing the dressing (A) and performing dressing changes (B) should come after assessing the wound. Documenting wound characteristics (D) is important but should also follow the initial assessment.
When instructing the client diagnosed with hyperparathyroidism about diet, the nurse should stress the importance of which of the following?
- A. Restricting fluids
- B. Forcing fluids
- C. Restricting sodium
- D. Restricting potassium
Correct Answer: C
Rationale: The correct answer is C: Restricting sodium. In hyperparathyroidism, there is an excess of parathyroid hormone leading to increased calcium levels. Sodium can worsen calcium excretion, exacerbating the condition. Restricting sodium can help reduce calcium loss.
A: Restricting fluids is not necessary unless the client has kidney issues.
B: Forcing fluids may not be beneficial and can lead to fluid overload.
D: Restricting potassium is not typically necessary unless the client has kidney issues.
Which scenario best illustrates the nurse using data validation when making a nursing clinical decision for a patient? The nurse determines to remove a wound dressing when the patient reveals the time
- A. of the last dressing change and notices old and new drainage. The nurse administers pain medicine due at 1700 at 1600 because the patient reports
- B. increased pain and the family wants something done. The nurse immediately asks the health care provider for an order of potassium when a
- C. patient reports leg cramps.
- D. The nurse elevates a leg cast when the patient reports decreased mobility.
Correct Answer: A
Rationale: The correct answer is A because it demonstrates data validation in the nursing clinical decision-making process. The nurse assesses the time of the last dressing change and observes old and new drainage, which are relevant data points for wound care. This approach ensures that the decision to remove the dressing is based on accurate and validated information, leading to appropriate patient care.
Choice B is incorrect because it relies on subjective information (increased pain and family request) rather than objective data validation. Choice C is incorrect as it involves a direct request for an order without sufficient data validation. Choice D is incorrect because elevating a leg cast based solely on a patient's report of decreased mobility does not involve thorough data validation related to the specific care needed for the patient's condition.
Pulmonary edema is characterized by:
- A. Elevated left ventricular and-diastolic
- B. Increased hydrostatic pressure
- C. All of the above alterations
- D. A rise in pulmonary venous pressure
Correct Answer: C
Rationale: Rationale:
1. Pulmonary edema is caused by increased hydrostatic pressure in the pulmonary circulation.
2. Elevated left ventricular end-diastolic pressure signifies heart failure, a common cause of pulmonary edema.
3. A rise in pulmonary venous pressure is a consequence of increased hydrostatic pressure.
Therefore, all three alterations (A, B, D) are characteristic of pulmonary edema. Option C is correct. Choices A, B, and D are incorrect because they are all individually associated with pulmonary edema and collectively represent the condition.
For which of the ff conditions would the use of salt tablets be considered?
- A. a. Mild deficits of serum sodium
- B. Severe deficits of serum magnesium
- C. Severe deficits of serum potassium
- D. Severe deficits of serum calcium
Correct Answer: A
Rationale: Rationale:
- Salt tablets are used for mild deficits of serum sodium to help restore electrolyte balance.
- Sodium is crucial for fluid balance, nerve function, and muscle contraction.
- Severe deficits of serum magnesium, potassium, and calcium require specific electrolyte replacement therapy, not salt tablets.
Summary:
- Choice A is correct because salt tablets are used for mild deficits of serum sodium.
- Choices B, C, and D are incorrect because they involve severe deficits of different electrolytes that require specific replacement therapy.