TEST 1
Normal HCO3 (bicarbonate)
21-28
ABG normal pH
7.35-7.45
Normal PaO2
80-100
A client with chronic renal failure complains of generalized bone pain and tenderness. Which assessment finding would alert the nurse to an increased potential for the development of spontaneous bone fractures? Elevated serum creatinine Hyperkalemia Hyperphosphatemia Elevated urea and nitrogen
Hyperphosphatemia Explanation: Osteodystrophy is a condition in which the bone becomes demineralized due to hypocalcemia and hyperphosphatemia. In an effort to raise blood calcium levels, the parathyroid glands secrete more parathormone. Elevated creatinine, urea, nitrogen, and potassium levels are expected in chronic renal failure and do not contribute to bone fractures.
What is a characteristic of the intrarenal category of acute kidney injury (AKI)? Decreased creatinine Increased BUN High specific gravity Decreased urine sodium
increased BUN Explanation: The intrarenal category of acute kidney injury (AKI) encompasses an increased BUN, increased creatinine, a low-normal specific gravity of urine, and increased urine sodium. Intrarenal AKI is the result of actual parenchymal damage to the glomeruli or kidney tubules. Acute tubular necrosis (ATN), AKI in which there is damage to the kidney tubules, is the most common type of intrinsic AKI. Characteristics of ATN are intratubular obstruction, tubular back leak (abnormal reabsorption of filtrate and decreased urine flow through the tubule), vasoconstriction, and changes in glomerular permeability. These processes result in a decrease of GFR, progressive azotemia, and fluid and electrolyte imbalances.
When fluid intake is normal, the specific gravity of urine should be: 1.000 Less than 1.010 Greater than 1.025 1.010 to 1.025
1.010 to 1.025 Explanation: Urine-specific gravity is a measurement of the kidneys' ability to concentrate urine. The specific gravity of water is 1.000. A urine-specific gravity less than 1.010 may indicate inadequate fluid intake. A urine-specific gravity greater than 1.025 may indicate dehydration.
1kg = _____ ml
1kg=1000mL
Normal PaCO2
35-45
A history of infection specifically caused by group A beta-hemolytic streptococci is associated with which disorder? Acute renal failure Acute glomerulonephritis Chronic renal failure Nephrotic syndrome
Acute glomerulonephritis Explanation: Acute glomerulonephritis is also associated with varicella zoster virus, hepatitis B, and Epstein-Barr virus. Acute renal failure is associated with hypoperfusion to the kidney, parenchymal damage to the glomeruli or tubules, and obstruction at a point distal to the kidney. Chronic renal failure may be caused by systemic disease, hereditary lesions, toxic agents, infections, and medications. Nephrotic syndrome is caused by disorders such as chronic glomerulonephritis, systemic lupus erythematosus, multiple myeloma, and renal vein thrombosis.
The nurse is reviewing the potassium level of a patient with kidney disease. The results of the test are 6.5 mEq/L, and the nurse observes peaked T waves on the ECG. What priority intervention does the nurse anticipate the physician will order to reduce the potassium level? Administration of an insulin drip Administration of a loop diuretic Administration of sodium bicarbonate Administration of sodium polystyrene sulfonate [Kayexalate])
Administration of sodium polystyrene sulfonate [Kayexalate]) Explanation: The elevated potassium levels may be reduced by administering cation-exchange resins (sodium polystyrene sulfonate [Kayexalate]) orally or by retention enema. Kayexalate works by exchanging sodium ions for potassium ions in the intestinal tract.
The presence of prerenal azotemia is a probable indicator for hospitalization for CAP. Which of the following is an initial laboratory result that would alert a nurse to this condition? Blood urea nitrogen (BUN)-to-creatinine ratio (BUN:Cr) >20. BUN of 18 mg/dL. Serum creatinine of 1.2 mg/dL. Glomerular filtration rate (GFR) of 100 mL/min.
Blood urea nitrogen (BUN)-to-creatinine ratio (BUN:Cr) >20. Explanation: The normal BUN:Cr ratio is less than 15. Prerenal azotemia is caused by hypoperfusion of the kidneys due to a nonrenal cause. Over time, higher than normal blood levels of urea or other nitrogen-containing compounds will develop
The client is admitted to the hospital with a diagnosis of acute glomerulonephritis. Which clinical manifestation would the nurse expect to find? Hyperalbuminemia Peripheral neuropathy Cola-colored urine Hypotension
Cola-colored urine Explanation: Clinical manifestations of acute glomerulonephritis include cola-colored urine, hematuria, edema, azotemia, and proteinuria.
A client is admitted with nausea, vomiting, and diarrhea. His blood pressure on admission is 74/30 mm Hg. The client is oliguric and his blood urea nitrogen (BUN) and creatinine levels are elevated. The physician will most likely write an order for which treatment? Encourage oral fluids. Administer furosemide (Lasix) 20 mg IV Start hemodialysis after a temporary access is obtained. Start IV fluids with a normal saline solution bolus followed by a maintenance dose.
Start IV fluids with a normal saline solution bolus followed by a maintenance dose. Explanation: The client is in prerenal failure caused by hypovolemia. I.V. fluids should be given with a bolus of normal saline solution followed by maintenance I.V. therapy. This treatment should rehydrate the client, causing his blood pressure to rise, his urine output to increase, and the BUN and creatinine levels to normalize. The client wouldn't be able to tolerate oral fluids because of the nausea, vomiting, and diarrhea. The client isn't fluid-overloaded so his urine output won't increase with furosemide, which would actually worsen the client's condition. The client doesn't require dialysis because the oliguria and elevated BUN and creatinine levels are caused by dehydration.
The nurse expects which of the following assessment findings in the client in the diuretic phase of acute renal failure? Dehydration Hyperkalemia Crackles Hypertension
Dehydration Explanation: The diuretic phase of acute renal failure is characterized by increased urine output, hypotension, and dehydration
Based on the pathophysiologic changes that occur as renal failure progresses, the nurse identifies the following indicators associated with the disease. Select all that apply. Hyperkalemia Metabolic alkalosis Anemia Hyperalbuminemia Hypocalcemia
Hyperkalemia Anemia Hypocalcemia Explanation: Hyperkalemia is due to decreased potassium excretion and excessive potassium intake. Metabolic acidosis results from decreased acid secretion by the kidney. A damaged glomerular membrane causes excess protein loss.
The nurse is explaining the steps for collecting a clean catch urine specimen to a client. Which statement by the client indicates effective teaching? "I'll start to urinate for a few seconds and then start to collect the specimen." "After I clean the area, I can let go of my labia to hold the container." "I need to collect at least 100 mL of urine for the specimen." "I need to use one antiseptic wipe to clean the sides and down the middle."
"I'll start to urinate for a few seconds and then start to collect the specimen." Explanation: When collecting a clean catch urine specimen, the client would begin voiding for a few seconds and then collect 30 to 50 mL of the midstream urine into the container. The client would use one antiseptic towelette to clean the one side of the urethra, one to clean the other side of the urethra, and then a third to clean the center. The labia are held apart during the cleaning process and throughout the voiding until after the specimen is collected.
The nurse is instructing a 3-year-old's mother regarding abnormal findings within the urinary system. Which assessment finding would the nurse document as a normal finding for this age group? Dysuria Enuresis Hematuria Anuria
Enuresis Explanation: The nurse would be most correct to document that enuresis, the involuntary voiding during sleep or commonly called "wetting the bed," is a normal finding in a pediatric client younger than 5 years old. Dysuria (pain on urination), hematuria (red blood cells in urine), and anuria (urine output less than 50 mL/day) are all abnormal findings needing further investigation
The nurse instructs a client to perform continuous ambulatory peritoneal dialysis correctly at home. Which educational information should the nurse provide to the client? Wear a mask while handling any dialysate solutions. Keep the catheter stabilized to the abdomen, below the belt line. Use an aseptic technique during the procedure. Clean the catheter insertion site daily with soap.
Use an aseptic technique during the procedure. Explanation: The client should be instructed to use an aseptic technique during the procedure. The client should also demonstrate the continuous ambulatory peritoneal dialysis (CAPD) exchange procedure for the nurse using an aseptic technique (clients on continuous cycling peritoneal dialysis [CCPD] should also demonstrate an exchange procedure in case of failure or unavailability of a cycling machine). A mask is generally worn only while performing exchanges, especially when a client has an upper respiratory infection. The catheter insertion site should be cleaned daily with an antiseptic such as povidone-iodine, not with soap. In addition, the catheter should be stabilized to the abdomen above the belt line, not below the belt line, to avoid constant rubbing
A client is admitted to the hospital with a prerenal disorder, a nonurologic condition that disrupts renal blood flow to the nephrons, affecting their filtering ability. One cause of prerenal acute kidney injury is: anaphylaxis myoglobinuria secondary to burns polycystic disease ureteral stricture
anaphylaxis Explanation: Anaphylaxis is a cause of prerenal acute renal failure. Myoglobinuria secondary to burns is a cause of intrarenal acute renal failure. Polycystic disease is a cause of intrarenal acute renal failure. Ureteral stricture is a cause of postrenal acute renal failure.
What measure would the nurse take after interpreting the following ABG results for a postop pt. on 40% O2 face mask? ph 7.34 PaCO2 46 mmHg HCO3 26 mEq/L PaO2 mm Hg a. prepare for endotracheal intubation b. increase the percentage of oxygen c. monitor the respiratory rate and depth d. notify provider STAT
c. monitor respiratory rate and depth closely rationale: the ABG reveals an uncompensated respiratory acidosis. The PaCO2 is slightly elevated. CO2 retention can result from the increased respiratory rate and depth. The PaCO2 is within normal limits, so an increase in O2 is not needed. The provider should be notified of the ABG results, but is is not an emergency or requiring intubation.
A client develops acute renal failure (ARF) after receiving IV therapy with a nephrotoxic antibiotic. Because the client's 24-hour urine output totals 240 mL, the nurse suspects that the client is at risk for: cardiac arrhythmia. paresthesia. dehydration. pruritus.
cardiac arrhythmia. Explanation: As urine output decreases, the serum potassium level rises; if it rises sufficiently, hyperkalemia may occur, possibly triggering a cardiac arrhythmia. Hyperkalemia doesn't cause paresthesia (sensations of numbness and tingling). Dehydration doesn't occur during this oliguric phase of ARF, although typically it does arise during the diuretic phase. In the client with ARF, pruritus results from increased phosphates and isn't associated with hyperkalemia.
The term used to describe total urine output less than 0.5 mL/kg/hour is oliguria. anuria. nocturia. dysuria.
oliguria. Explanation: Oliguria is associated with acute and chronic renal failure. Anuria is used to describe total urine output less than 50 mL in 24 hours. Nocturia refers to awakening at night to urinate. Dysuria refers to painful or difficult urination.
A client presents to the emergency department complaining of a dull, constant ache along the right costovertebral angle along with nausea and vomiting. The most likely cause of the client's symptoms is: renal calculi. an overdistended bladder. interstitial cystitis. acute prostatitis.
renal calculi. Explanation: Renal calculi usually presents as a dull, constant ache at the costovertebral angle. The client may also present with nausea and vomiting, diaphoresis, and pallor. The client with an overdistended bladder and interstitial cystitis presents with dull, continuous pain at the suprapubic area that's intense with voiding. The client also complains of urinary urgency and straining to void. The client with acute prostatitis presents with a feeling of fullness in the perineum and vague back pain, along with frequency, urgency, and dysuria.
