2/19/25, 7:40 PM Pass CCRN test 2025 | Questions and Answers | Professor Verified Flashcards | Quizlet
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Terms in this set (48)
The electrolyte imbalance Hypokalemia decreases gastric motility and often
that is a frequent cause of occurs after surgery, primarily because of the action
postoperative paralytic of aldosterone. Nasogastric suctioning, vomiting, and
ileus is which of the diuresis also may contribute to perioperative
following? potassium loss.
A. Hypocalcemia
B. Hypokalemia
C. Hypomagnesemia
D. Hyponatremia
A patient receiving an Hyperkalemia. Because ACE inhibitors block the
angiotensin-converting release of aldosterone, and spironolactone is an
enzyme (ACE) inhibitor aldosterone antagonist, the action of aldosterone is
and spironolactone for diminished. Because aldosterone causes the retention
heart failure is at risk for of sodium and water and the excretion of potassium,
which electrolyte the patient is at risk for hyperkalemia.
imbalance?
A. Hypernatremia Remember that spironolactone traditionally has been
B. Hyperkalemia called a potassium-sparing diuretic. Thus it would
C. Hypocalcemia cause the retention of potassium.
D. Hypophosphatemia
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,2/19/25, 7:40 PM Pass CCRN test 2025 | Questions and Answers | Professor Verified Flashcards | Quizlet
A patient with an electrical Saline, mannitol, and bicarbonate. The destruction of
burn develops brown muscle by the electricity has caused myoglobin to
urine. The urinalysis appear in the urine. Myoglobin is a heavy pigment that
confirms myoglobinuria. can cause acute tubular necrosis and kidney injury.
Which of the following The treatment for myoglobinuria is to flush the
interventions would you pigments through with fluids, usually saline, and
anticipate to prevent the diuretics, usually mannitol. Alkalinization of the urine
development of acute using sodium bicarbonate intravenously also may be
tubular necrosis and prescribed to increase the excretion of the
kidney injury in this myoglobin.
patient?
A. Saline, mannitol, and
bicarbonate
B. Colloids, furosemide,
and dopamine
C. Blood, furosemide, and
dobutamine
D. Lactated Ringer
solution,
hydrochlorothiazide, and
dopamine
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,2/19/25, 7:40 PM Pass CCRN test 2025 | Questions and Answers | Professor Verified Flashcards | Quizlet
A patient with diabetic The potassium would decrease to approximately 3
ketoacidosis was admitted mEq/L.
to the critical care unit Changes in pH causes potassium to move either into
from the emergency or out of the cell. Acidosis causes potassium to leave
department. His initial the cell and increases serum potassium levels,
laboratory results whereas alkalosis causes potassium to enter the cell
included serum glucose and decreases serum potassium. For every change in
660 mg/dl, pH 7.0, and pH of 0.1, the potassium moves 0.5 mEq/L in the
serum potassium of 5 opposite direction. In this patient the pH has changed
mEq/L. As the pH is 4 × 0.1 from the midline normal pH of 7.4 so the serum
corrected with insulin and potassium is expected to decrease by 2 mEq/L (0.5 ×
fluids, what would be the 4) when the pH is corrected. So 5 minus 2 mEq/L is 3
anticipated change in his mEq/L and this is what the potassium would be
potassium? expected to fall to with correction of the pH.
A. The potassium would Potassium replacement is indicated now even though
decrease to his potassium is currently at a high normal level. The
approximately 3 mEq/L. potassium level will plummet as insulin and fluids
B. The potassium would correct the blood glucose and pH.
decrease to If you remember there is a change in serum potassium
approximately 4 mEq/L. level with pH changes, you eliminate 5 mEq/L. Also,
C. The potassium would remember the change in pH and the change in serum
remain at approximately 5 potassium is inverse, do you eliminate 6 mEq/L. To
mEq/L. choose between 3 mEq/L and 4 mEq/L, you need to
D. The potassium would know how significant a change is expected.
increase to approximately
6 mEq/L.
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, 2/19/25, 7:40 PM Pass CCRN test 2025 | Questions and Answers | Professor Verified Flashcards | Quizlet
Magnesium is being Tetany.
administered to a patient High levels of magnesium cause smooth muscle
admitted with acute relaxation, resulting in hypotension, diminished deep
myocardial infarction. tendon reflexes, and muscle weakness, potentially
Which of the following resulting in respiratory muscle paralysis and
would not be an indication respiratory arrest. Tetany occurs with
that magnesium levels are hypomagnesemia.
too high? Notice that "Diminished deep tendon reflexes,
A. Diminished deep Hypotension," and "Muscle weakness" indicate a
tendon reflexes relaxant effect or weakness. Option "Tetany" is an
B. Hypotension increase in irritability. Choose "Tetany" because the
C. Tetany question asks what would not be an indication of high
D. Muscle weakness magnesium.
A 77-year-old woman Correction of hypovolemia is of immediate concern.
reports explosive diarrhea Sympathetic nervous system stimulation is evidenced
for 48 hours. She is by the narrowed pulse pressure and tachycardia.
extremely lethargic. Volume depletion is evidenced by the temperature
Mucous membranes are elevation; dry, sticky mucous membranes; and small
dry and sticky, and the volumes of dark, concentrated urine. Because the
urine is dark amber with a major function of the large intestine is to absorb
specific gravity of 1.035. approximately 8 L of water per day, fluid loss is critical
Vital signs are temperature in ongoing diarrhea. If not corrected, it may lead to
38.2° C orally; heart rate hypovolemic shock and death.
130 beats/min and regular; If you have no idea of the correct answer, consider
respiratory rate 26 which option is potentially life threatening.
breaths/min and regular; Hypovolemia, especially in an older adult, is the most
and blood pressure 90/74 life threatening of the options given. Choose
mm Hg. Which of the "Hypovolemia."
following is of the most
immediate concern?
A. Infection
B. Hypovolemia
C. Nutrition
D. Skin breakdown
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Pass CCRN test 2025 | Questions and Answers |
Professor Verified
Save
Terms in this set (48)
The electrolyte imbalance Hypokalemia decreases gastric motility and often
that is a frequent cause of occurs after surgery, primarily because of the action
postoperative paralytic of aldosterone. Nasogastric suctioning, vomiting, and
ileus is which of the diuresis also may contribute to perioperative
following? potassium loss.
A. Hypocalcemia
B. Hypokalemia
C. Hypomagnesemia
D. Hyponatremia
A patient receiving an Hyperkalemia. Because ACE inhibitors block the
angiotensin-converting release of aldosterone, and spironolactone is an
enzyme (ACE) inhibitor aldosterone antagonist, the action of aldosterone is
and spironolactone for diminished. Because aldosterone causes the retention
heart failure is at risk for of sodium and water and the excretion of potassium,
which electrolyte the patient is at risk for hyperkalemia.
imbalance?
A. Hypernatremia Remember that spironolactone traditionally has been
B. Hyperkalemia called a potassium-sparing diuretic. Thus it would
C. Hypocalcemia cause the retention of potassium.
D. Hypophosphatemia
https://quizlet.com/1007993585/pass-ccrn-test-2025-questions-and-answers-professor-verified-flash-cards/?new 1/31
,2/19/25, 7:40 PM Pass CCRN test 2025 | Questions and Answers | Professor Verified Flashcards | Quizlet
A patient with an electrical Saline, mannitol, and bicarbonate. The destruction of
burn develops brown muscle by the electricity has caused myoglobin to
urine. The urinalysis appear in the urine. Myoglobin is a heavy pigment that
confirms myoglobinuria. can cause acute tubular necrosis and kidney injury.
Which of the following The treatment for myoglobinuria is to flush the
interventions would you pigments through with fluids, usually saline, and
anticipate to prevent the diuretics, usually mannitol. Alkalinization of the urine
development of acute using sodium bicarbonate intravenously also may be
tubular necrosis and prescribed to increase the excretion of the
kidney injury in this myoglobin.
patient?
A. Saline, mannitol, and
bicarbonate
B. Colloids, furosemide,
and dopamine
C. Blood, furosemide, and
dobutamine
D. Lactated Ringer
solution,
hydrochlorothiazide, and
dopamine
https://quizlet.com/1007993585/pass-ccrn-test-2025-questions-and-answers-professor-verified-flash-cards/?new 2/31
,2/19/25, 7:40 PM Pass CCRN test 2025 | Questions and Answers | Professor Verified Flashcards | Quizlet
A patient with diabetic The potassium would decrease to approximately 3
ketoacidosis was admitted mEq/L.
to the critical care unit Changes in pH causes potassium to move either into
from the emergency or out of the cell. Acidosis causes potassium to leave
department. His initial the cell and increases serum potassium levels,
laboratory results whereas alkalosis causes potassium to enter the cell
included serum glucose and decreases serum potassium. For every change in
660 mg/dl, pH 7.0, and pH of 0.1, the potassium moves 0.5 mEq/L in the
serum potassium of 5 opposite direction. In this patient the pH has changed
mEq/L. As the pH is 4 × 0.1 from the midline normal pH of 7.4 so the serum
corrected with insulin and potassium is expected to decrease by 2 mEq/L (0.5 ×
fluids, what would be the 4) when the pH is corrected. So 5 minus 2 mEq/L is 3
anticipated change in his mEq/L and this is what the potassium would be
potassium? expected to fall to with correction of the pH.
A. The potassium would Potassium replacement is indicated now even though
decrease to his potassium is currently at a high normal level. The
approximately 3 mEq/L. potassium level will plummet as insulin and fluids
B. The potassium would correct the blood glucose and pH.
decrease to If you remember there is a change in serum potassium
approximately 4 mEq/L. level with pH changes, you eliminate 5 mEq/L. Also,
C. The potassium would remember the change in pH and the change in serum
remain at approximately 5 potassium is inverse, do you eliminate 6 mEq/L. To
mEq/L. choose between 3 mEq/L and 4 mEq/L, you need to
D. The potassium would know how significant a change is expected.
increase to approximately
6 mEq/L.
https://quizlet.com/1007993585/pass-ccrn-test-2025-questions-and-answers-professor-verified-flash-cards/?new 3/31
, 2/19/25, 7:40 PM Pass CCRN test 2025 | Questions and Answers | Professor Verified Flashcards | Quizlet
Magnesium is being Tetany.
administered to a patient High levels of magnesium cause smooth muscle
admitted with acute relaxation, resulting in hypotension, diminished deep
myocardial infarction. tendon reflexes, and muscle weakness, potentially
Which of the following resulting in respiratory muscle paralysis and
would not be an indication respiratory arrest. Tetany occurs with
that magnesium levels are hypomagnesemia.
too high? Notice that "Diminished deep tendon reflexes,
A. Diminished deep Hypotension," and "Muscle weakness" indicate a
tendon reflexes relaxant effect or weakness. Option "Tetany" is an
B. Hypotension increase in irritability. Choose "Tetany" because the
C. Tetany question asks what would not be an indication of high
D. Muscle weakness magnesium.
A 77-year-old woman Correction of hypovolemia is of immediate concern.
reports explosive diarrhea Sympathetic nervous system stimulation is evidenced
for 48 hours. She is by the narrowed pulse pressure and tachycardia.
extremely lethargic. Volume depletion is evidenced by the temperature
Mucous membranes are elevation; dry, sticky mucous membranes; and small
dry and sticky, and the volumes of dark, concentrated urine. Because the
urine is dark amber with a major function of the large intestine is to absorb
specific gravity of 1.035. approximately 8 L of water per day, fluid loss is critical
Vital signs are temperature in ongoing diarrhea. If not corrected, it may lead to
38.2° C orally; heart rate hypovolemic shock and death.
130 beats/min and regular; If you have no idea of the correct answer, consider
respiratory rate 26 which option is potentially life threatening.
breaths/min and regular; Hypovolemia, especially in an older adult, is the most
and blood pressure 90/74 life threatening of the options given. Choose
mm Hg. Which of the "Hypovolemia."
following is of the most
immediate concern?
A. Infection
B. Hypovolemia
C. Nutrition
D. Skin breakdown
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