ATI Fluid and Electrolytes

ATI Fluid and Electrolytes Related

Review ATI Fluid and Electrolytes related questions and content

The physician has ordered a peripheral IV to be inserted before the patient goes for computed tomography. What should the nurse do when selecting a site on the hand or arm for insertion of an IV catheter?

  • A. Choose a site with minimal hair if available.
  • B. Consider potential effects on the patient's mobility when selecting a site.
  • C. Instruct the patient to hold his arm in a dependent position before insertion.
  • D. Remove the tourniquet after 2 minutes.
Correct Answer: B

Rationale: When selecting a site for IV insertion on the hand or arm, it is important to consider the potential effects on the patient's mobility. The chosen site should not interfere with the patient's movement. Instructing the patient to hold his arm in a dependent position helps increase blood flow, aiding in vein visualization and insertion. It is advisable to choose a site with minimal hair if possible for better adhesion of the dressing. Removing the tourniquet after 2 minutes is recommended to prevent complications like hemoconcentration and potential vein damage. Therefore, option B is the correct choice as it aligns with best practices for IV insertion.

You may also like to solve these questions

What is the function of aldosterone?

  • A. Regulates body temperature.
  • B. Decreases blood pressure.
  • C. Increases sodium reabsorption.
  • D. Promotes water excretion.
Correct Answer: C

Rationale: Aldosterone increases the reabsorption of sodium in the kidneys, which leads to an increase in blood volume and blood pressure. Choice A is incorrect as aldosterone does not regulate body temperature. Choice B is incorrect as aldosterone increases blood pressure by increasing sodium reabsorption. Choice D is incorrect as aldosterone promotes water retention by increasing sodium reabsorption.

Which positive ion is most prevalent in intracellular fluid?

  • A. Calcium
  • B. Potassium
  • C. Sodium
  • D. Magnesium
Correct Answer: B

Rationale: The correct answer is Potassium (K+). Potassium is the predominant cation found within cells, making it the most prevalent positive ion in intracellular fluid. Calcium, sodium, and magnesium are also essential ions in the body, but they are not as abundant in intracellular fluid. Calcium is vital for bone health and muscle function, sodium helps in maintaining fluid balance and nerve function, and magnesium is involved in numerous biochemical reactions.

Which electrolyte is important in the formation of the thyroid hormones?

  • A. Sodium
  • B. Iodine
  • C. Iron
  • D. Chloride
Correct Answer: B

Rationale: Iodine is the correct answer because it is essential for the synthesis of thyroid hormones. The thyroid gland incorporates iodine into thyroid hormones such as thyroxine (T4) and triiodothyronine (T3). These hormones are crucial for regulating metabolism, growth, and development. Sodium, iron, and chloride are not directly involved in the formation of thyroid hormones, making them incorrect choices.

The chief mechanism for maintaining fluid balance is to:

  • A. adjust fluid intake so it equals fluid output.
  • B. adjust fluid intake so it is slightly above fluid output.
  • C. adjust fluid output so it equals fluid input.
  • D. adjust fluid intake so it is slightly below fluid output.
Correct Answer: C

Rationale: The correct answer is C: 'adjust fluid output so it equals fluid input.' Maintaining fluid balance involves ensuring that the amount of fluid lost through processes like urination, sweating, and respiration equals the amount of fluid taken in. This ensures that the body stays properly hydrated. Choices A, B, and D are incorrect because they do not focus on the balance between fluid input and output, which is crucial for maintaining proper fluid balance. By adjusting fluid output to equal fluid input, the body can regulate hydration levels effectively, preventing dehydration or overhydration.

You are working on a burns unit, and one of your acutely ill patients is exhibiting signs and symptoms of third spacing. Based on this change in status, you should expect the patient to exhibit signs and symptoms of what imbalance?

  • A. Metabolic alkalosis
  • B. Hypermagnesemia
  • C. Hypercalcemia
  • D. Hypovolemia
Correct Answer: D

Rationale: When a patient exhibits signs and symptoms of third-spacing, where fluid moves out of the intravascular space but not into the intracellular space, hypovolemia is expected. This leads to a decreased circulating blood volume. Increased calcium and magnesium levels are not typically associated with third-spacing fluid shift. Burns usually result in acidosis rather than alkalosis, making metabolic alkalosis an incorrect choice. Therefore, hypovolemia is the correct answer in this scenario.

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