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Nursing care for a client undergoing chemotherapy includes assessment for signs of bone marrow depression. Which finding accounts for some of the symptoms related to bone marrow depression?
- A. erythrocytosis
- B. leukocytosis
- C. polycythemia
- D. thrombocytopenia
Correct Answer: D
Rationale: Thrombocytopenia is an abnormal decrease in the number of platelets, which results in bleeding tendencies. During chemotherapy, bone marrow depression can lead to a reduction in platelet production, causing thrombocytopenia. Erythrocytosis is an abnormal increase in red blood cells, leukocytosis is an increase in white blood cells, and polycythemia is an excess of red blood cells, which is synonymous with erythrocytosis. In the context of chemotherapy, the focus is on the decrease in red and white blood cells, making thrombocytopenia the most relevant finding.
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The nurse is caring for a 44-year-old client diagnosed with hypoparathyroidism. Which electrolyte imbalance is closely associated with hypoparathyroidism?
- A. Hypocalcemia.
- B. Hyponatremia.
- C. Hyperkalemia.
- D. Hypophosphatemia.
Correct Answer: A.
Rationale: The correct answer is Hypocalcemia. In hypoparathyroidism, where the parathyroid glands are not producing sufficient parathyroid hormone, calcium levels become inadequate. This leads to hypocalcemia, characterized by symptoms such as muscle spasms, anxiety, seizures, hypotension, and congestive heart failure. Hyponatremia and hyperkalemia are not typically associated with hypoparathyroidism. While hyperphosphatemia can be seen in hypoparathyroidism due to decreasing calcium levels, the question specifically asks about the primary electrolyte imbalance closely related to hypoparathyroidism, which is hypocalcemia.
What are the side effects of first-generation over-the-counter (OTC) antihistamines like diphenhydramine (Benadryl) and hydroxyzine (Atarax) in infants and children?
- A. Reye's syndrome.
- B. cholinergic effects.
- C. paradoxical CNS stimulation.
- D. nausea and diarrhea.
Correct Answer: C
Rationale: The correct answer is paradoxical CNS stimulation. First-generation OTC antihistamines, such as diphenhydramine and hydroxyzine, can lead to paradoxical CNS stimulation in infants and children. This phenomenon is characterized by symptoms like excitement, euphoria, restlessness, and confusion, rather than the expected sedative effect. Due to this unexpected response, these antihistamines are used less frequently in pediatric populations. Reye's syndrome is a rare systemic response to a virus and is not a side effect of antihistamines. First-generation OTC antihistamines do not typically exhibit cholinergic effects. Nausea and diarrhea are uncommon side effects of these antihistamines and are less commonly observed than paradoxical CNS stimulation.
Which type of exercises might be prescribed to strengthen the pelvic floor muscles of a client with urinary incontinence?
- A. Kegel
- B. resistance
- C. passive
- D. stretching
Correct Answer: A
Rationale: The correct answer is Kegel. Kegel exercises are specifically designed to strengthen the pelvic floor muscles, making them an effective treatment for urinary incontinence. These exercises involve contracting and relaxing the pelvic floor muscles, which helps to improve muscle tone and control. Choice B, resistance exercises, may not directly target the pelvic floor muscles as effectively as Kegel exercises. Passive exercises (Choice C) do not actively engage the muscles and are unlikely to strengthen the pelvic floor. Stretching exercises (Choice D) focus on increasing flexibility rather than muscle strength, so they are not the most appropriate for strengthening the pelvic floor muscles in the context of urinary incontinence.
How can light therapy be effective?
- A. overcoming weight problems.
- B. helping with allergies.
- C. use in alternative medical treatments.
- D. working with sleep patterns.
Correct Answer: D
Rationale: Light therapy can be effective in treating problems associated with sleep patterns, stress, moods, jaundice in newborns, and seasonal affective disorders. While light therapy is not typically used for overcoming weight problems or helping with allergies, it is specifically known for its benefits in regulating sleep patterns. Therefore, the correct answer is 'working with sleep patterns.' Choices A, B, and C are incorrect as light therapy is not commonly utilized for overcoming weight problems, helping with allergies, or as a general alternative medical treatment.
Which of the following medications is not classified as a neuromuscular blocker?
- A. Anectine
- B. Pavulon
- C. Pitressin
- D. Mivacron
Correct Answer: C
Rationale: The correct answer is Pitressin. Pitressin is a hormone replacement medication and is not classified as a neuromuscular blocker. Choices A, B, and D (Anectine, Pavulon, Mivacron) are neuromuscular blockers used during anesthesia to induce muscle relaxation for various procedures. Anectine is also known as succinylcholine, Pavulon is rocuronium, and Mivacron is mivacurium. These medications act on the neuromuscular junction to block the transmission of nerve impulses, leading to muscle relaxation.