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A gerontologic nurse is teaching students about the high incidence and prevalence of dehydration in older adults.
What factors contribute to this phenomenon? Select all that do not apply.
- A. Decreased kidney mass
- B. Decreased renal blood flow
- C. Decreased excretion of potassium
- D. Increased conservation of sodium
Correct Answer: D
Rationale: The correct answer is D: Increased conservation of sodium. Older adults tend to have an increased conservation of sodium, leading to fluid retention and decreased fluid intake, which can contribute to dehydration.
A: Decreased kidney mass is incorrect because it is a factor that can contribute to decreased kidney function but not directly linked to dehydration.
B: Decreased renal blood flow can impact kidney function but is not a direct cause of dehydration in older adults.
C: Decreased excretion of potassium is not a factor that directly contributes to dehydration in older adults.
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A nurse assesses a client who is admitted for treatment of fluid overload. Which manifestations should the nurse expect to find? (Select all that do not apply.)
- A. Increased pulse rate
- B. . Distended neck veins
- C. Warm and pink skin
- D. Skeletal muscle weakness
Correct Answer: C
Rationale: Step 1: Fluid overload leads to increased fluid volume in the body, causing skin to appear pale, cool, and clammy due to poor circulation.
Step 2: "Warm and pink skin" is not a typical manifestation of fluid overload.
Step 3: Therefore, the correct answer is C.
Summary:
A: Increased pulse rate - Possible in fluid overload due to increased volume causing increased workload on the heart.
B: Distended neck veins - Common in fluid overload due to increased venous pressure.
C: Warm and pink skin - Incorrect, as skin is usually pale, cool, and clammy.
D: Skeletal muscle weakness - Not directly related to fluid overload.
While assessing a clients peripheral IV site, the nurse observes a streak of red along the vein path and palpates a 4-cm venous cord. How should the nurse document this finding?
- A. Grade 3 phlebitis at IV site
- B. infection at IV site
- C. Thrombosed area at IV site
- D. infiltration at IV site
Correct Answer: A
Rationale: The correct answer is A: Grade 3 phlebitis at IV site. This finding indicates inflammation of the vein due to irritants from the IV catheter, supported by red streak and palpable cord. Grade 3 phlebitis involves pain, redness, swelling, and palpable venous cord. Infection (B) typically presents with signs like pus, warmth, and fever. Thrombosis (C) involves a blood clot, not a palpable cord. Infiltration (D) is leakage of IV fluid into surrounding tissues, not related to palpable cord and red streak.
When planning the care of a patient with a fluid imbalance, the nurse understands that in the human body, water
and electrolytes move from the arterial capillary bed to the interstitial fluid. What causes this to occur?
- A. Active transport of hydrogen ions across the capillary walls
- B. Pressure of the blood in the renal capillaries
- C. Action of the dissolved particles contained in a unit of blood
- D. Hydrostatic pressure resulting from the pumping action of the heart
Correct Answer: D
Rationale: Rationale: The correct answer is D. Hydrostatic pressure resulting from the pumping action of the heart causes water and electrolytes to move from the arterial capillary bed to the interstitial fluid. This occurs due to the force exerted by the heart's pumping action, pushing fluid out of the capillaries into the interstitial space. This process is known as filtration and is essential for maintaining fluid balance in the body.
Summary of other choices:
A: Active transport of hydrogen ions does not directly cause the movement of water and electrolytes between capillaries and interstitial fluid.
B: The pressure in renal capillaries specifically relates to the kidneys, not the general movement of water and electrolytes in the body.
C: The dissolved particles in blood do not directly contribute to the movement of water and electrolytes between capillaries and interstitial fluid.
You are caring for a 65-year-old male patient admitted to your medical unit 72 hours ago with pyloric stenosis. A
nasogastric tube placed upon admission has been on low intermittent suction ever since. Upon review of the mornings
blood work, you notice that the patients potassium is below reference range. You should recognize that the patient may
be at risk for what imbalance?
- A. Hypercalcemia
- B. Metabolic acidosis
- C. Metabolic alkalosis
- D. Respiratory acidosis
Correct Answer: C
Rationale: The correct answer is C: Metabolic alkalosis. Pyloric stenosis can lead to vomiting, causing loss of gastric acid and chloride ions, leading to metabolic alkalosis. Low potassium levels are common in metabolic alkalosis due to potassium shifting into cells to compensate for the alkalosis. Hypercalcemia (choice A) is not associated with pyloric stenosis. Metabolic acidosis (choice B) typically presents with low pH and bicarbonate levels. Respiratory acidosis (choice D) is caused by impaired gas exchange in the lungs, not related to pyloric stenosis.
A nurse educator is reviewing peripheral IV insertion with a group of novice nurses. How should these nurses be
encouraged to deal with excess hair at the intended site?
- A. Leave the hair intact
- B. Shave the area.
- C. Clip the hair in the area.
- D. Remove the hair with a depilatory.
Correct Answer: C
Rationale: The correct answer is C: Clip the hair in the area. Clipping the hair is the most appropriate option as it reduces the risk of infection during IV insertion by minimizing the presence of bacteria that may be trapped in the hair. Shaving (B) can cause micro-abrasions leading to increased infection risk. Leaving the hair intact (A) can also trap bacteria. Using a depilatory (D) can cause skin irritation and should be avoided. In summary, clipping the hair is the best option to maintain a clean and safe environment for IV insertion.