Fluid and Electrolyte Imbalances Quiz

What occurs when the body retains more water than it can excrete, often leading to dilution of blood components?

• Overhydration

• Hypervolemia

• Dehydration

• Hyponatremia

Answer explanation

Overhydration occurs when the body retains excess water, leading to dilution of blood components. This condition can cause an imbalance in electrolytes, particularly sodium, resulting in symptoms of hypervolemia and hyponatremia.

What are common causes of fluid overload?

• Heart failure, kidney disease, cirrhosis

• Excess fluid administration, SIADH

• Use of hypotonic IV solutions

• All of the above

Answer explanation

Fluid overload can result from heart failure, kidney disease, cirrhosis, excess fluid administration, SIADH, and the use of hypotonic IV solutions. Therefore, the correct answer is 'All of the above'.

What are symptoms of fluid overload?

• Bounding pulse, hypertension, increased respiratory rate

• Jugular venous distention, peripheral edema, crackles in the lungs

• Shortness of breath, increased urinary output, weight gain

• All of the above

Answer explanation

Fluid overload can present with various symptoms including a bounding pulse, hypertension, increased respiratory rate, jugular venous distention, peripheral edema, crackles in the lungs, shortness of breath, increased urinary output, and weight gain. Thus, the correct answer is 'All of the above'.

What lab findings are associated with fluid overload?

• Decreased hematocrit and hemoglobin

• Low serum osmolality, low sodium and BUN levels

• Decreased urine specific gravity

• All of the above

Answer explanation

Fluid overload leads to decreased hematocrit and hemoglobin due to dilution, low serum osmolality and sodium from excess fluid, and decreased urine specific gravity as the kidneys excrete more dilute urine. Thus, all options are correct.

What is a complication of fluid overload characterized by anxiety, tachycardia, dyspnea, crackles, and pink frothy sputum?

• Pulmonary edema

• Hyponatremia

• Hypokalemia

• Hypocalcemia

Answer explanation

Pulmonary edema is a complication of fluid overload that presents with symptoms like anxiety, tachycardia, dyspnea, crackles, and pink frothy sputum, indicating fluid accumulation in the lungs.

What is the role of insulin with glucose in managing hypokalemia?

• Insulin helps move potassium back into cells

• Glucose prevents hypoglycemia from insulin use

• Both A and B

• Neither A nor B

Answer explanation

Insulin facilitates the uptake of potassium into cells, helping to manage hypokalemia. Additionally, glucose is administered to prevent hypoglycemia that can occur with insulin use. Therefore, both A and B are correct.

What are the nursing interventions for hypocalcemia?

• Encourage increased oral fluids

• Administer loop diuretics to promote calcium excretion

• Monitor for muscle weakness, GI symptoms, and renal function

• All of the above

Answer explanation

The correct choice is 'All of the above' because nursing interventions for hypocalcemia include monitoring for symptoms, encouraging fluid intake, and administering diuretics to manage calcium levels.

What is the importance of monitoring reflexes and breathing in hypomagnesemia?

• As magnesium rises, reflexes diminish

• If reflexes are absent, respiratory arrest may follow

• Both A and B

• Neither A nor B

Answer explanation

Monitoring reflexes and breathing in hypomagnesemia is crucial because as magnesium levels rise, reflexes diminish, and absent reflexes can lead to respiratory arrest. Thus, both statements A and B are important.

What are the responsibilities of LVNs in managing fluid and electrolyte imbalances?

• Collecting thorough data such as vital signs, daily weights, intake and output

• Identifying early warning signs like changes in level of consciousness, orthostatic hypotension, muscle weakness, or irregular heart rhythms

• Reviewing and interpreting lab values to identify trends

• All of the above

Answer explanation

LVNs are responsible for managing fluid and electrolyte imbalances by collecting data, identifying warning signs, and reviewing lab values. Therefore, the correct answer is 'All of the above'.

Excess accumulation of fluid, which impairs the exchange of materials within the tissues, is called _____.

• MALT (mucosa-associated lymphatic tissue)

• stroke

• edema

• shock

Answer explanation

Edema is the term for the excess accumulation of fluid in tissues, which disrupts material exchange. It is distinct from MALT, stroke, and shock, making edema the correct answer.