NR226 - Chap 42 PQ P2

A (A nursing assistive personnel (AP) can record intake and output. An RN cannot delegate regulating flow rate, starting an IV, or changing an IV dressing to an NAP.)

A nurse is caring for a patient prescribed peripheral intravenous (IV) therapy. Which task will the nurse assign to the nursing assistive personnel? a. Recording intake and output b. Regulating intravenous flow rate c. Starting peripheral intravenous therapy d. Changing a peripheral intravenous dressing

B (Signs and symptoms of hypokalemia are muscle weakness, abdominal distention, decreased bowel sounds, and cardiac dysrhythmias. Distended neck veins occur in fluid overload. Thready peripheral pulses indicate hypovolemia. Dry mucous membranes and flushed skin are indicative of dehydration and hypernatremia.)

A nurse is caring for a patient whose electrocardiogram (ECG) presents with changes characteristic of hypokalemia. Which assessment finding will the nurse expect? a. Dry mucous membranes b. Abdominal distention c. Distended neck veins d. Flushed skin

B (The patient is losing acid from the nasogastric tube so the patient will have metabolic alkalosis. Lung problems will produce respiratory alkalosis or acidosis. Metabolic acidosis will occur when too much acid is in the body like kidney failure.)

A patient is admitted for a bowel obstruction and has had a nasogastric tube set to low intermittent suction for the past 3 days. Which arterial blood gas values will the nurse expect to observe? a. Respiratory alkalosis b. Metabolic alkalosis c. Metabolic acidosis d. Respiratory acidosis

A (The kidneys (renal) are responsible for respiratory acidosis compensation. A problem with the respiratory system causes respiratory acidosis, so another organ system (renal) needs to compensate. Problems with the gastrointestinal and endocrine systems can cause acid-base imbalances, but these systems cannot compensate for an existing imbalance.)

A patient is experiencing respiratory acidosis. Which organ system is responsible for compensation in this patient? a. Renal b. Endocrine c. Respiratory d. Gastrointestinal

D (A rapid gain in weight usually indicates extracellular volume (ECV) excess if the person began with normal ECV. Asking the patient about urination habits will help determine whether the body is trying to excrete the excess fluid or if renal dysfunction is contributing to ECV excess. This is too rapid a weight gain to be dietary; it is fluid retention. Asking about following a weight loss program will not help determine the cause of the problem. Caloric intake does not account for rapid weight changes. Dry mouth and thirst accompany ECV deficit, which would be associated with rapid weight loss.)

A patient receiving chemotherapy has gained 5 pounds in 2 days. Which assessment question by the nurse is most appropriate? a.. "Are you following any weight loss program?" b. "How many calories a day do you consume?" c. "Do you have dry mouth or feel thirsty?" d. "How many times a day do you urinate?"

B (A positive Chvostek's sign is representative of hypocalcemia or hypomagnesemia. Hypomagnesemia is common with alcohol abuse. Hypocalcemia can be brought on by alcohol abuse and pancreatitis (which also can be affected by alcohol consumption). Burn patients frequently experience extracellular fluid volume deficit. Hyperparathyroidism causes hypercalcemia. Immobility is associated with hypercalcemia.)

In which patient will the nurse expect to see a positive Chvostek's sign? a. A 7-year-old child admitted for severe burns b. A 24-year-old adult admitted for chronic alcohol abuse c. A 50-year-old patient admitted for an acute exacerbation of hyperparathyroidism d. A 75-year-old patient admitted for a broken hip related to osteoporosis

A (0.45% sodium chloride is a hypotonic solution. NS and LR are isotonic. D5LR is hypertonic.)

The health care provider has ordered a hypotonic intravenous (IV) solution to be administered. Which IV bag will the nurse prepare? a. 0.45% sodium chloride (1/2 NS) b. 0.9% sodium chloride (NS) c. Lactated Ringer's (LR) d. Dextrose 5% in Lactated Ringer's (D5LR)

C (The patient is in fluid overload. Raising the head of the bed to a high-Flower's position will help ease breathing and so is the first action. Offering calcium-rich foods is for hypocalcemia, not fluid overload. Administering a diuretic is the second action. Increasing fluids is contraindicated and would make the situation worse.)

The nurse is assessing a patient and notes crackles in the lung bases and neck vein distention. Which action will the nurse take first? a. Offer calcium-rich foods. b. Administer diuretic. c. Raise head of bed. d. Increase fluids.

A (The laboratory values that reflect metabolic acidosis are pH 7.3, PaCO2 36 mm Hg, HCO3- 19 mEq/L. A laboratory finding of pH 7.5, PaCO2 35 mm Hg, HCO3- 35 mEq/L is metabolic alkalosis. pH 7.32, PaCO2 47 mm Hg, HCO3- 23 mEq/L is respiratory acidosis. pH 7.35, PaCO2 40 mm Hg, HCO3- 25 mEq/L values are within normal range. (PH normal = 7.35 to 7.45) (PaCO2 normal 35 to 45 mm Hg) (HCO3- normal = 22 to 26 mEq/L))

The nurse is caring for a diabetic patient in renal failure who is in metabolic acidosis. Which laboratory findings are consistent with metabolic acidosis? a. pH 7.3, PaCO2 36 mm Hg, HCO3- 19 mEq/L b. pH 7.5, PaCO2 35 mm Hg, HCO3- 35 mEq/L c. pH 7.32, PaCO2 47 mm Hg, HCO3- 23 mEq/L d. pH 7.35, PaCO2 40 mm Hg, HCO3- 25 mEq/L

B (Respiratory alkalosis should show an alkalotic pH and decreased CO2 (respiratory) values, with a normal HCO3-. In this case, pH 7.53 is alkaline (PH normal = 7.35 to 7.45), PaCO2 is 30 (PaCO2 normal 35 to 45 mm Hg), and HCO3- is 24 (HCO3- normal = 22 to 26 mEq/L). A result of pH 7.60, PaCO2 40 mm Hg, HCO3- 30 mEq/L is metabolic alkalosis. pH 7.35, PaCO2 35 mm Hg, HCO3- 26 mEq/L is within normal limits. pH 7.25, PaCO2 48 mm Hg, HCO3- 23 mEq/L is respiratory acidosis. (PH normal = 7.35 to 7.45) (PaCO2 normal 35 to 45 mm Hg) (HCO3- normal = 22 to 26 mEq/L))

Which blood gas result will the nurse expect to observe in a patient with respiratory alkalosis? a. pH 7.60, PaCO2 40 mm Hg, HCO3- 30 mEq/L b. pH 7.53, PaCO2 30 mm Hg, HCO3- 24 mEq/L c. pH 7.35, PaCO2 35 mm Hg, HCO3- 26 mEq/L d. pH 7.25, PaCO2 48 mm Hg, HCO3- 23 mEq/L