Chapter 13

Which solution is hypotonic?

0.45% NaCl

The physician has prescribed a hypotonic IV solution for a patient. Which IV solution should the nurse administer?

0.45% sodium chloride

At which serum sodium concentration might convulsions or coma occur?

130 mEq/L (130 mmol/L)

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

Which is the most common cause of symptomatic hypomagnesemia?

Alcoholism

Air embolism is a potential complication of IV therapy. The nurse should be alert to which clinical manifestation associated with air embolism?

Chest pain

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

The nurse is caring for a client with a serum potassium concentration of 6.0 mEq/L (6.0 mmol/L) and a fluid volume excess. The client is ordered to receive oral sodium polystyrene sulfonate and furosemide. What other order should the nurse anticipate giving?

Discontinue the intravenous lactated Ringer solution.

Which of the following is a clinical manifestation of fluid volume excess (FVE)? Select all that apply.

Distended neck veins Crackles in the lung fields Shortness of breath

Which nerve is implicated in the Chvostek's sign?

Facial

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

The nurse is conducting a lecture on the difference between hypovolemia and dehydration. When completing a verbal comparison, which point needs clarified?

In dehydration, only extracellular is depleted.

A client with a magnesium concentration of 2.6 mEq/L (1.3 mmol/L) is being treated on a medical-surgical unit. Which treatment should the nurse anticipate will be used?

Intravenous furosemide

With which condition should the nurse expect that a decrease in serum osmolality will occur?

Kidney failure

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 priority nursing intervention for a client with hypervolemia involves which of the following?

Monitoring respiratory status for signs and symptoms of pulmonary complications.

A patient with abnormal sodium losses is receiving a regular diet. How can the nurse supplement the patient's diet to provide 1,600 mg of sodium daily?

One beef cube and 8 oz of tomato juice

Which electrolyte is a major cation in body fluid?

Potassium

The nurse is reviewing client lab work for a critical lab value. Which value is called to the physician for additional orders?

Potassium: 5.8 mEq/L

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

Serum bicarbonate of 28 mEq/L

Which of the following electrolytes is the primary determinant of extracellular fluid (ECF) osmolality?

Sodium

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 mEq/L

A nurse is conducting an initial assessment on a client with possible tuberculosis. Which assessment finding indicates a risk factor for tuberculosis?

The client had a liver transplant 2 years ago.

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

A client presents with anorexia, nausea and vomiting, deep bone pain, and constipation. The following are the client's laboratory values. sodium 137 mEq/L (137 mmol/L) potassium 4.6 mEq/L (4.6 mmol/L) chloride 94 mEq/L (94 mmol/L) calcium 12.9 mg/dL (3.2 mmol/L) What laboratory value is of highest concern to the nurse?

calcium 12.9 mg/dL (3.2 mmol/L)

A client is taking spironolactone to control hypertension. The client's serum potassium level is 6 mEq/L. What is the nurse's priority during assessment?

electrocardiogram (ECG) results

A client who complains of an "acid stomach" has been taking baking soda (sodium bicarbonate) regularly as a self-treatment. This may place the client at risk for which acid-base imbalance?

metabolic alkalosis

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

A client with respiratory acidosis is admitted to the intensive care unit for close observation. What client complication associated with respiratory acidosis would the nurse observe?

papilledema

Oral intake is controlled by the thirst center, located in which of the following cerebral areas?

Hypothalamus

The nurse is assessing residents at a summer picnic at the nursing facility. The nurse expresses concern due to the high heat and humidity of the day. Although the facility is offering the residents plenty of fluids for fluid maintenance, the nurse is most concerned about which?

Insensible fluid loss

A client admitted with acute anxiety has the following arterial blood gas (ABG) values: pH, 7.55; partial pressure of arterial oxygen (PaO2), 90 mm Hg; partial pressure of arterial carbon dioxide (PaCO2), 27 mm Hg; and bicarbonate (HCO3-), 24 mEq/L. Based on these values, the nurse suspects:

respiratory alkalosis.

Which is an insensible mechanism of fluid loss?

Breathing

A client reports tingling in the fingers as well as feeling depressed. The nurse assesses positive Trousseau's and Chvostek's signs. Which decreased laboratory results does the nurse observe when the client's laboratory work has returned?

Calcium

Your client has a diagnosis of hypervolemia. What would be an important intervention that you would initiate?

Limit sodium and water intake.

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

Magnesium

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

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

The nurse is assigned a client with calcium level of 4.0 mg/dL. Which system assessment would the nurse ask detailed questions?

Neurological system

Which of the following would be appropriate nursing interventions for a client with hypokalemia? Select all that apply.

Offer a diet with fruit juices and citrus fruits. Monitor intake and output every shift.

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 comes to the emergency department with status asthmaticus. His respiratory rate is 48 breaths/minute, and he is wheezing. An arterial blood gas analysis reveals a pH of 7.52, a partial pressure of arterial carbon dioxide (PaCO2) of 30 mm Hg, PaO2 of 70 mm Hg, and bicarbonate (HCO3??') of 26 mEq/L. What disorder is indicated by these findings?

Respiratory alkalosis

A nurse reviews the arterial blood gas (ABG) values of a client admitted with pneumonia: pH, 7.51; PaCO2, 28 mm Hg; PaO2, 70 mm Hg; and HCO3--, 24 mEq/L. What do these values indicate?

Respiratory alkalosis

Treatment of FVE involves dietary restriction of sodium. Which of the following food choices would be part of a low-sodium diet, mild restriction (2 to 3 g/day)?

Three ounces of light or dark meat chicken, 1 cup of spaghetti and a garden salad

A client reports muscle cramps in the calves and feeling "tired a lot." The client is taking ethacrynic acid (Edecrin) for hypertension. Based on these symptoms, the client will be evaluated for which electrolyte imbalance?

hypokalemia

Clients diagnosed with hypervolemia should avoid sweet or dry food because it

increases the client's desire to consume fluid.

Fluid and electrolyte balance is maintained through the process of translocation. What specific process allows water to pass through a membrane from a dilute to a more concentrated area?

osmosis

A client has been admitted to the hospital unit with signs and symptoms of hypovolemia; however, the client has not lost weight. The client exhibits a localized enlargement of her abdomen. What condition could the client be presenting?

third-spacing

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 in the intensive care unit (ICU) following a near-drowning event in saltwater. The client is restless, lethargic, and demonstrating tremors. Additional assessment findings include swollen and dry tongue, flushed skin, and peripheral edema. The nurse anticipates that the client's serum sodium value would be

155 mEq/L (155 mmol/L)

The nurse is caring for four clients on a medical unit. The nurse is most correct to review which client's laboratory reports first for an electrolyte imbalance?

A 52-year-old with diarrhea