Page 1 of 59 Pathophysiology- Exam 2 Pathophysiology- Exam 2.pdf
Pathophysiology- Exam 2
Answer:
A. Increased neuromuscular excitability
B. Muscle tightness
C. Positive Chvostek's sign
E. Arrhythmias
Explanation:
Hypocalcemia is characterized by increased neuromuscular excitability, muscle tightness, positive
Chvostek and Trousseau signs, and arrhythmias. Decreased deep tendon reflexes are associated with
hypercalcemia, not hypocalcemia.
1. Which of the following signs and symptoms are indicative of hypocalcemia? Select all that apply:
A. Increased neuromuscular excitability
B. Muscle tightness
C. Positive Chvostek's sign
D. Decreased deep tendon reflexes
E. Arrhythmias
Answer:
B. Hyperkalemia
Explanation:
Hyperkalemia is associated with muscle twitching, weakness, and flaccid paralysis due to the effects of
high potassium levels on muscle function. Hypokalemia typically causes muscle cramps and weakness,
not twitching or paralysis.
1
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2. A patient presents with muscle twitching, weakness, and flaccid paralysis. Which electrolyte
imbalance is most likely responsible for these symptoms?
A. Hypokalemia
B. Hyperkalemia
C. Hyponatremia
D. Hypernatremia
Answer:
C. Dehydration
Explanation:
Hypernatremia occurs due to a loss of water without a corresponding loss of sodium, commonly seen in
dehydration. Excessive water intake and SIADH are causes of hyponatremia, not hypernatremia.
---
3. Which of the following is a common cause of hypernatremia?
A. Excessive water intake
B. Syndrome of inappropriate antidiuretic hormone (SIADH)
C. Dehydration
D. Diuretic use
2
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Answer:
C. Hyperphosphatemia
Explanation:
Hyperphosphatemia can lead to soft tissue calcifications and is often associated with concurrent
hypocalcemia, as phosphate and calcium levels are inversely related.
---
4. Which electrolyte imbalance is most likely to cause soft tissue calcifications?
A. Hypocalcemia
B. Hypophosphatemia
C. Hyperphosphatemia
D. Hypomagnesemia
Answer:
A. Muscle cramps
B. Arrhythmias
C. Weakness
Explanation:
Hypokalemia often presents with muscle cramps, weakness, and arrhythmias. Flaccid paralysis and
seizures are not typical features of hypokalemia but may be seen in severe hyperkalemia and severe
electrolyte disturbances, respectively.
---
5. A patient with hypokalemia is likely to present with which of the following symptoms? Select all that
apply:
3
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A. Muscle cramps
B. Arrhythmias
C. Weakness
D. Flaccid paralysis
E. Seizures
Answer:
C. Heart
Explanation:
Prolonged hyperkalemia primarily affects the heart, leading to arrhythmias and, in severe cases, cardiac
arrest. The kidneys are often the source of hyperkalemia due to impaired excretion, but the heart is
most at risk.
---
6. What is the primary organ damaged by prolonged hyperkalemia?
A. Liver
B. Kidneys
C. Heart
D. Lungs
Answer:
A. Portal hypertension
4
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Pathophysiology- Exam 2
Answer:
A. Increased neuromuscular excitability
B. Muscle tightness
C. Positive Chvostek's sign
E. Arrhythmias
Explanation:
Hypocalcemia is characterized by increased neuromuscular excitability, muscle tightness, positive
Chvostek and Trousseau signs, and arrhythmias. Decreased deep tendon reflexes are associated with
hypercalcemia, not hypocalcemia.
1. Which of the following signs and symptoms are indicative of hypocalcemia? Select all that apply:
A. Increased neuromuscular excitability
B. Muscle tightness
C. Positive Chvostek's sign
D. Decreased deep tendon reflexes
E. Arrhythmias
Answer:
B. Hyperkalemia
Explanation:
Hyperkalemia is associated with muscle twitching, weakness, and flaccid paralysis due to the effects of
high potassium levels on muscle function. Hypokalemia typically causes muscle cramps and weakness,
not twitching or paralysis.
1
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2. A patient presents with muscle twitching, weakness, and flaccid paralysis. Which electrolyte
imbalance is most likely responsible for these symptoms?
A. Hypokalemia
B. Hyperkalemia
C. Hyponatremia
D. Hypernatremia
Answer:
C. Dehydration
Explanation:
Hypernatremia occurs due to a loss of water without a corresponding loss of sodium, commonly seen in
dehydration. Excessive water intake and SIADH are causes of hyponatremia, not hypernatremia.
---
3. Which of the following is a common cause of hypernatremia?
A. Excessive water intake
B. Syndrome of inappropriate antidiuretic hormone (SIADH)
C. Dehydration
D. Diuretic use
2
https:// /ahip-4-ahip-2024-module-4-flash-cards/
Page 2 Pathophysiology- Exam 2 Pathophysiology- Exam 2.pdf
,Page 3 of 59 Pathophysiology- Exam 2 Pathophysiology- Exam 2.pdf
Answer:
C. Hyperphosphatemia
Explanation:
Hyperphosphatemia can lead to soft tissue calcifications and is often associated with concurrent
hypocalcemia, as phosphate and calcium levels are inversely related.
---
4. Which electrolyte imbalance is most likely to cause soft tissue calcifications?
A. Hypocalcemia
B. Hypophosphatemia
C. Hyperphosphatemia
D. Hypomagnesemia
Answer:
A. Muscle cramps
B. Arrhythmias
C. Weakness
Explanation:
Hypokalemia often presents with muscle cramps, weakness, and arrhythmias. Flaccid paralysis and
seizures are not typical features of hypokalemia but may be seen in severe hyperkalemia and severe
electrolyte disturbances, respectively.
---
5. A patient with hypokalemia is likely to present with which of the following symptoms? Select all that
apply:
3
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A. Muscle cramps
B. Arrhythmias
C. Weakness
D. Flaccid paralysis
E. Seizures
Answer:
C. Heart
Explanation:
Prolonged hyperkalemia primarily affects the heart, leading to arrhythmias and, in severe cases, cardiac
arrest. The kidneys are often the source of hyperkalemia due to impaired excretion, but the heart is
most at risk.
---
6. What is the primary organ damaged by prolonged hyperkalemia?
A. Liver
B. Kidneys
C. Heart
D. Lungs
Answer:
A. Portal hypertension
4
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Page 4 Pathophysiology- Exam 2 Pathophysiology- Exam 2.pdf
