Fluid and electrolytes

The nurse is caring for a client diagnosed with bulimia. The client is being treated for a serum potassium concentration of 2.9 mEq/L (2.9 mmol/L). Which statement made by the client indicates the need for further teaching?

"I can use laxatives and enemas but only once a week."

The nurse is caring for a client undergoing alcohol withdrawal. Which serum laboratory value should the nurse monitor most closely?

Magnesium

The nurse is instructing a client with recurrent hyperkalemia about following a potassium-restricted diet. Which statement by the client indicates the need for additional instruction?

"I will not salt my food; instead I'll use salt substitute."

The nurse is caring for a patient with a diagnosis of hyponatremia. What nursing intervention is appropriate to include in the plan of care for this patient? (Select all that apply.)

-Assessing for symptoms of nausea and malaise -Monitoring neurologic status -Restricting tap water intake

The physician has prescribed 0.9% sodium chloride IV for a hospitalized client in metabolic alkalosis. Which nursing actions are required to manage this client? Select all that apply.

-Maintain intake and output records. -Compare ABG findings with previous results. -Document presenting signs and symptoms.

Which solution is hypotonic?

0.45% NaCl

A client is to receive hypotonic IV solution in order to provide free water replacement. Which solution does the nurse anticipate administering?

0.45% NaCl 0.9% is normal and 0.45% is half

The weight of a client with congestive heart failure is monitored daily and entered into the medical record. In a 24-hour period, the client's weight increased by 2 lb. How much fluid is this client retaining?

1 L

Below which serum sodium concentration might convulsions or coma occur?

135 - Manifestations of hyponatremia include mental confusion, muscular weakness, anorexia, restlessness, elevated body temperature, tachycardia, nausea, vomiting, and personality changes.

A patient's serum sodium concentration is within the normal range. What should the nurse estimate the serum osmolality to be?

275-300

A client experiencing a severe anxiety attack and hyperventilating presents to the emergency department. The nurse would expect the client's pH value to be

7.50 (hyperventilating = resp alkalosis)

What percentage of potassium excreted daily leaves the body by way of the kidneys?

80

The nurse has been assigned to care for various clients. Which client is at the highest risk for a fluid and electrolyte imbalance?

An 82-year-old client who receives all nutrition via tube feedings and whose medications include carvedilol and torsemide.

The emergency department (ED) nurse is caring for a client with a possible acid-base imbalance. The physician has ordered an arterial blood gas (ABG). What is one of the most important indications of an acid-base imbalance that is shown in an ABG?

Bicarbonate - Arterial blood gas (ABG) results are the main tool for measuring blood pH, CO2 content (PaCO2), and bicarbonate.

The nurse is caring for a client with a serum sodium concentration of 113 mEq/L (113 mmol/L). The nurse should monitor the client for the development of which condition?

Confusion

Upon shift report, the nurse states the following laboratory values: pH, 7.44; PCO2, 30mmHg; and HCO3,21 mEq/L for a client with noted acid-base disturbances. Which acid-base imbalance do both nurses agree is the client's current state?

Compensated respiratory alkalosis

Which findings indicate that a client has developed water intoxication secondary to treatment for diabetes insipidus?

Confusion and seizures - Classic signs of water intoxication include confusion and seizures, both of which are caused by cerebral edema.

A client has a respiratory rate of 38 breaths/min. What effect does breathing faster have on arterial pH level?

Increases arterial pH - Respiratory alkalosis is always caused by hyperventilation, which is a decrease in plasma carbonic acid concentration

A nurse is caring for an adult client with numerous draining wounds from gunshots. The client's pulse rate has increased from 100 to 130 beats per minute over the last hour. The nurse should further assess the client for which of the following?

Extracellular fluid volume deficit -

A nurse is caring for a client with metastatic breast cancer who is extremely lethargic and very slow to respond to stimuli. The laboratory report indicates a serum calcium level of 12.0 mg/dl, a serum potassium level of 3.9 mEq/L, a serum chloride level of 101 mEq/L, and a serum sodium level of 140 mEq/L. Based on this information, the nurse determines that the client's symptoms are most likely associated with which electrolyte imbalance?

Hypercalcemia

An elderly client takes 40 mg of furosemide twice a day. Which electrolyte imbalance is the mostserious adverse effect of diuretic use?

Hypokalemia

Which could be a potential cause of respiratory acidosis?

Hypoventilation

A nurse caring for a patient with metabolic alkalosis knows to assess for the primary, compensatory mechanism of:

Increased PaCO2.- The respiratory system compensates by decreasing ventilation to conserve CO2 and increase the PaCO2.

The nurse is caring for a client with multiple organ failure and in metabolic acidosis. Which pair of organs is responsible for regulatory processes and compensation?

Lungs and kidney

Major cation in body fluid?

K+

A client hospitalized for treatment of a pulmonary embolism develops respiratory alkalosis. Which clinical findings commonly accompany respiratory alkalosis?

Light-headedness or paresthesia-

The nurse is caring for a patient with diabetes type I who is having severe vomiting and diarrhea. What condition that exhibits blood values with a low pH and a low plasma bicarbonate concentration should the nurse assess for?

Metabolic acidosis

A client has the following arterial blood gas (ABG) values: pH, 7.12; partial pressure of arterial carbon dioxide (PaCO2), 40 mm Hg; and bicarbonate (HCO3-), 15 mEq/L. These ABG values suggest which disorder?

Metabolic acidosis - This client's pH value is below normal, indicating acidosis. The HCO3- value also is below normal, reflecting an overwhelming accumulation of acids or excessive loss of base, which suggests metabolic acidosis. The PaCO2 value is normal, indicating absence of respiratory compensation. These ABG values eliminate respiratory alkalosis, respiratory acidosis, and metabolic alkalosis.

A client in the emergency department reports that he has been vomiting excessively for the past 2 days. His arterial blood gas analysis shows a pH of 7.50, partial pressure of arterial carbon dioxide (PaCO2) of 43 mm Hg, partial pressure of arterial oxygen (PaO2) of 75 mm Hg, and bicarbonate (HCO3-) of 42 mEq/L. Based on these findings, the nurse documents that the client is experiencing which type of acid-base imbalance?

Metabolic alkalosis

A client with a suspected overdose of an unknown drug is admitted to the emergency department. Arterial blood gas values indicate respiratory acidosis. What should the nurse do first?

Prepare to assist with ventilation.

A client is being treated in the ICU 24 hours after having a radical neck dissection completed. The client's serum calcium concentration is 7.6 mg/dL (1.9 mmol/L). Which physical examination finding is consistent with this electrolyte imbalance?

Presence of Trousseau sign

The nurse is participating in the care of a client who had a peripherally inserted central catheter (PICC) placed in the right arm. After catheter placement, the nurse should complete which action?

Send the client for a chest x-ray.

Which of the following arterial blood gas results would be consistent with metabolic alkalosis?

Serum bicarbonate of 28 mEq/L

A client is diagnosed with syndrome of inappropriate antidiuretic hormone (SIADH). The nurse should anticipate which laboratory test result?

Serum sodium level of 124

A patient with diabetes insipidus presents to the emergency room for treatment of dehydration. The nurse knows to review serum laboratory results for which of the diagnostic indicators?

Sodium level of 150 - Hypernatremia (normal serum sodium is 135 to 145 mEq/L) is consistent with increased fluid loss and dehydration in diabetes insipidus.

The nurse is caring for a client diagnosed with chronic obstructive pulmonary disease (COPD) and experiencing respiratory acidosis. The client asks what is making the acidotic state. The nurse is most correct to identify which result of the disease process that causes the fall in pH?

The lungs are not able to blow off carbon dioxide.

Which condition leads to chronic respiratory acidosis in older adults?

Thoracic skeletal change - Poor respiratory exchange as the result of chronic lung disease, inactivity, or thoracic skeletal changes may lead to chronic respiratory acidosis.

What does the nurse understand is the primary method by which fluid volume is regulated?

Urine excretion

A nurse is reviewing a report of a client's routine urinalysis. Which value requires further investigation?

Urine pH of 3.0

A nurse is providing client teaching about the body's plasma pH and the client asks the nurse what is the major chemical regulator of plasma pH. What is the best response by the nurse?

bicarbonate-carbonic acid buffer system

The nurse is assigned to care for a client with a serum phosphorus concentration of 5.0 mg/dL (1.61 mmol/L). The nurse anticipates that the client will also experience which electrolyte imbalance?

hypocalcemia

Early signs of hypervolemia include

increased breathing effort and weight gain

Tuberculosis Risk Factors

international travel; liver transplant

Following a unilateral adrenalectomy, a nurse should assess for hyperkalemia as indicated by:

muscle weakness

Which is a correct route of administration for potassium?

oral

When evaluating arterial blood gases (ABGs), which value is consistent with metabolic alkalosis?

pH 7.48 - Metabolic alkalosis is a clinical disturbance characterized by a high pH and high plasma bicarbonate concentration.

The nurse is analyzing the arterial blood gas (ABG) results of a client diagnosed with severe pneumonia. Which of the following ABG results indicates respiratory acidosis?

pH: 7.20, PaCO2: 65 mm Hg, HCO3-: 26 mEq/L

To compensate for decreased fluid volume (hypovolemia), the nurse can anticipate which response by the body?

tachycardia

A client is diagnosed with hypocalcemia and the nurse is teaching the client about symptoms. What symptom would the nurse include in the teaching?

tingling sensation in the fingers

In which of the following medical conditions would administering IV normal saline solution be inappropriate? Select all that apply.

Heart failure Pulmonary edema Renal impairment

A client with hypervolemia asks the nurse what mechanism in the sodium potassium pump will move the excess body fluid. What is the nurse's best answer?

active transport

The nurse is correct to state that a client's body needs to have adequate nutrition to maintain energy. Which type of transport of dissolved substances requires adenosine triphosphate (ATP)?

active transport