ADULTS ACTUAL EXAM
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A patient presents with confusion, headache, and
low serum sodium in SIADH. What is the
primary urine finding?
A. Dilute urine with low osmolality
B. Concentrated urine with high osmolality
C. High urine glucose
D. Low urine potassium
Correct Answer: B. Concentrated urine with high
,osmolality
Rationale: SIADH causes excessive ADH release
leading to water retention and dilutional
hyponatremia. Despite low serum sodium, the
kidneys continue to concentrate urine, resulting in
elevated urine osmolality and low serum osmolality
due to water overload.
Diabetes insipidus is most commonly associated
with which serum sodium level?
A. Hyponatremia
B. Hypernatremia
C. Normal sodium
D. Hypokalemia
Correct Answer: B. Hypernatremia
Rationale: In diabetes insipidus, lack of ADH leads
to excessive free water loss, causing dehydration and
increased serum sodium concentration.
Psychogenic polydipsia typically presents with
which laboratory finding?
A. High urine osmolality
B. Low serum sodium and dilute urine
C. High serum sodium
D. Hyperkalemia
Correct Answer: B. Low serum sodium and
,dilute urine
Rationale: Excessive water intake overwhelms renal
excretion, causing dilutional hyponatremia and very
low urine osmolality due to water overload.
A patient with neurogenic bladder and chronic
Foley presents with rising creatinine. What is the
priority nursing action?
A. Administer diuretics
B. Flush and assess catheter patency
C. Restrict fluids
D. Start antibiotics immediately
Correct Answer: B. Flush and assess catheter
patency
Rationale: Post-renal obstruction must be ruled out
first. A blocked catheter can cause urinary retention
and worsening kidney function, so ensuring patency
is the immediate priority.
Which medication regimen is appropriate after
sexual assault exposure prophylaxis?
A. Amoxicillin only
B. Ceftriaxone, azithromycin, metronidazole,
emergency contraception
C. Vancomycin only
D. Fluconazole only
, Correct Answer: B. Ceftriaxone, azithromycin,
metronidazole, emergency contraception
Rationale: Post-assault prophylaxis includes STI
coverage (gonorrhea, chlamydia, trichomonas) and
pregnancy prevention (Plan B).
Conn syndrome (primary hyperaldosteronism) is
characterized by:
A. Hyperkalemia and hypotension
B. Hypokalemia, hypertension, hypernatremia
C. Hyponatremia and hypotension
D. Hypercalcemia
Correct Answer: B. Hypokalemia, hypertension,
hypernatremia
Rationale: Excess aldosterone increases sodium
retention and potassium excretion, leading to
hypertension and hypokalemia.
Cushing syndrome is caused by:
A. Low cortisol
B. Excess glucocorticoids (endogenous or
exogenous)
C. Low aldosterone
D. Low insulin
Correct Answer: B. Excess glucocorticoids
Rationale: Cushing syndrome results from chronic