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A client has cancer that has me tastasized to her bones. She is complaining of increased thirst, polyuria and decreased muscle tone. Her lab values are: Na 139mEq/L, k 4 mEq/L, Cl 103 mEq/L, and Ca 8 mg/dl. What electrolyte imbalance is present?
- A. Hypocalcemia
- B. Hyperkalemia
- C. Hypercalcemia
- D. Hypochloremia
Correct Answer: C
Rationale: The correct answer is C: Hypercalcemia. Increased thirst and polyuria are symptoms of hypercalcemia, as excess calcium can lead to dehydration and increased urine output. Decreased muscle tone is also a common symptom of hypercalcemia. The lab value of Ca 8 mg/dl confirms high levels of calcium in the blood.
Incorrect choices:
A: Hypocalcemia - This is incorrect as the lab value of Ca 8 mg/dl indicates normal to high levels of calcium, ruling out hypocalcemia.
B: Hyperkalemia - This is incorrect as the lab value of K 4 mEq/L is within normal range, ruling out hyperkalemia.
D: Hypochloremia - This is incorrect as the lab value of Cl 103 mEq/L is within normal range, ruling out hypochloremia.
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A client with severe head trauma sustained in a car accident is admitted to the intensive care unit. Thirty six-hours later, the client’s urine output suddenly rises above 200mL/hour, leading the nurse to suspect diabetes insipidus. Which laboratory findings support the nurse’s suspicion of diabetes insipidus?
- A. Above-normal urine and serum osmolality levels
- B. Below-normal urine and serum osmolality levels
- C. Above-normal urine osmolality level, below-normal serum osmolality level
- D. Below- normal urine osmolality level, above-normal serum osmolality level
Correct Answer: D
Rationale: The correct answer is D: Below-normal urine osmolality level, above-normal serum osmolality level. In diabetes insipidus, there is a deficiency of antidiuretic hormone (ADH), leading to the excretion of large volumes of dilute urine. This results in low urine osmolality as the kidneys are unable to concentrate the urine. On the other hand, the serum osmolality increases due to the lack of ADH causing water retention. Therefore, the laboratory findings of low urine osmolality and high serum osmolality support the diagnosis of diabetes insipidus.
Explanation for other choices:
A: Above-normal urine and serum osmolality levels - This does not align with the pathophysiology of diabetes insipidus.
B: Below-normal urine and serum osmolality levels - This is incorrect as low serum osmolality is not characteristic of diabetes insipidus.
C: Above-normal urine osmolality level, below-normal
Which type of neuron transmits impulses from the central nervous system to the muscles and glands?
- A. Afferent
- B. Affective
- C. Efferent
- D. Effective A1 PASSERS TRAINING, RESEARCH, REVIEW & DEVELOPMENT COMPANY MEDICAL SURGICAL NURSING SET M
Correct Answer: C
Rationale: The correct answer is C: Efferent neurons transmit impulses from the central nervous system to muscles and glands. This is because efferent neurons are responsible for carrying motor signals away from the central nervous system to control muscle movement and gland secretion.
Afferent neurons (choice A) transmit sensory information from the body to the central nervous system. Affective (choice B) is not a term used in neuroscience for describing neuron functions. Effective (choice D) is not a term used in neuroscience and does not describe the specific function of transmitting impulses from the central nervous system to muscles and glands.
A nurse is teaching the staff about the benefits of Nursing Outcomes Classification. Which information should the nurse include in the teaching session? (Select all that apply.)
- A. Includes seven domains for level 1
- B. Uses an easy 3-point Likert scale
- C. Adds objectivity to judging a patient’s progress
- D. Allows choice in which interventions to choose
Correct Answer: C
Rationale: The correct answer is C because Nursing Outcomes Classification adds objectivity to judging a patient's progress by providing standardized criteria for assessing outcomes. This helps in evaluating the effectiveness of interventions and tracking improvements accurately. Other choices are incorrect: A is wrong because Nursing Outcomes Classification includes 7 domains but not necessarily for level 1; B is incorrect as it uses a 5-point Likert scale, not a 3-point scale; and D is inaccurate because Nursing Outcomes Classification guides the selection of interventions based on the identified outcomes, not allowing complete freedom in choosing interventions.
Which of the following intravenous solutions is hypotonic?
- A. Normal saline
- B. Ringer’s lactate
- C. 0.45% saline
- D. 5% dextrose in normal saline A1 PASSERS TRAINING, RESEARCH, REVIEW & DEVELOPMENT COMPANY MEDICAL SURGICAL NURSING SET F
Correct Answer: C
Rationale: The correct answer is C: 0.45% saline. This solution is hypotonic because it has a lower osmolarity compared to the intracellular fluid. It contains fewer solutes than the cells, causing water to move into the cells by osmosis, potentially causing them to swell.
Normal saline (A) and Ringer's lactate (B) are isotonic solutions, meaning they have a similar osmolarity to the intracellular fluid and do not cause significant water shifts.
5% dextrose in normal saline (D) is a hypertonic solution, containing more solutes than the cells, leading to water movement out of the cells.
Which screening test for colorectal cancer should the nurse recommend?
- A. Carcinoembryonic antigen (CEA) test
- B. Annual digital examination after age 50
- C. Barium enema after age 50
- D. Proctosigmoidoscopy after age 50
Correct Answer: D
Rationale: The correct screening test for colorectal cancer is D: Proctosigmoidoscopy after age 50. This test allows direct visualization of the lower colon and rectum, aiding in the detection of polyps or tumors. It is recommended for individuals over 50 years old to screen for colorectal cancer. A: CEA test is not a primary screening tool but rather used for monitoring cancer progression. B: Annual digital examination is not sufficient for colorectal cancer screening. C: Barium enema is less effective compared to colonoscopy for detecting abnormalities in the colon.