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A client with a diagnosis of heart failure is receiving furosemide (Lasix). Which electrolyte imbalance should the nurse monitor for?
- A. Hyperkalemia.
- B. Hyponatremia.
- C. Hypocalcemia.
- D. Hypokalemia.
Correct Answer: D
Rationale: The correct answer is D: Hypokalemia. Furosemide is a loop diuretic that can cause potassium loss, leading to hypokalemia. Therefore, the nurse should monitor the client for low potassium levels. Choice A, Hyperkalemia, is incorrect as furosemide does not typically cause high potassium levels. Choice B, Hyponatremia, is incorrect as furosemide primarily affects potassium levels, not sodium. Choice C, Hypocalcemia, is incorrect as furosemide does not directly impact calcium levels.
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What is the most important information for the nurse to provide to a client with a diagnosis of major depressive disorder who is started on a selective serotonin reuptake inhibitor (SSRI)?
- A. Take the medication with food
- B. Avoid foods high in tyramine
- C. Report any thoughts of self-harm immediately
- D. Expect to see improvement within 24 hours
Correct Answer: C
Rationale: The correct answer is C: 'Report any thoughts of self-harm immediately.' When starting an SSRI, clients should be informed to report any thoughts of self-harm promptly. SSRIs can initially increase suicidal ideation, especially in the early stages of treatment. This information is crucial for the client's safety and well-being. Choices A, B, and D are incorrect because taking the medication with food, avoiding foods high in tyramine, and expecting immediate improvement within 24 hours are not the most critical pieces of information for a client starting on an SSRI.
How should the nurse assess for cyanosis in a client with dark skin who is in respiratory distress?
- A. Abnormal skin color changes in a client with dark skin cannot be determined
- B. Blanching the soles of the feet in a client with dark skin reveals cyanosis
- C. The lips and mucus membranes of a client with dark skin are dusky in color
- D. Cyanosis in a client with dark skin is seen in the sclera
Correct Answer: C
Rationale: Observing the lips and mucous membranes provides a reliable indicator of cyanosis in clients with dark skin tones. Choice A is incorrect because cyanosis can be assessed in clients with dark skin by observing other body areas. Choice B is incorrect as blanching the soles of the feet is not a relevant method for assessing cyanosis. Choice D is incorrect as cyanosis is not typically seen in the sclera in clients with dark skin.
While caring for a client who is being mechanically ventilated, the nurse responds to a high-pressure alarm on the ventilator. Which assessment finding warrants immediate intervention by the nurse?
- A. Endotracheal cuff pressure greater than 25 cm H2O.
- B. Decreased lung compliance during ventilation.
- C. Bilateral crackles with increased secretions.
- D. Restless client who is biting the endotracheal tube.
Correct Answer: D
Rationale: A restless client biting the endotracheal tube can increase airway resistance, triggering the high-pressure alarm and indicating a need for immediate intervention. This behavior can lead to complications such as dislodgement of the tube or airway obstruction. Endotracheal cuff pressure greater than 25 cm H2O, decreased lung compliance, and bilateral crackles with increased secretions are important assessments but do not directly address the urgent need to intervene when a high-pressure alarm is triggered.
Which structures are located in the subcutaneous layer of the skin?
- A. Sebaceous and sweat glands
- B. Melanin and keratin
- C. Sensory receptors and hair follicles
- D. Adipose cells and blood vessels
Correct Answer: D
Rationale: The correct answer is D: Adipose cells and blood vessels. The subcutaneous layer, also known as the hypodermis, primarily consists of adipose (fat) tissue and blood vessels. Adipose tissue provides insulation, energy storage, and cushioning, while blood vessels supply nutrients and oxygen. Sebaceous and sweat glands are located in the dermis, which is the layer beneath the epidermis. Melanin and keratin are components of the epidermis, responsible for skin color and waterproofing, respectively. Sensory receptors and hair follicles are found in the dermis and extend into the subcutaneous layer but are not exclusive to it.
What is the primary function of neutrophils?
- A. Heparin secretion
- B. Transport oxygen
- C. Phagocytotic action
- D. Antibody formation
Correct Answer: C
Rationale: The correct answer is C: Phagocytotic action. Neutrophils are key components of the immune system, primarily involved in the phagocytosis of bacteria and other pathogens. Choice A, Heparin secretion, is incorrect as heparin is primarily secreted by mast cells and basophils. Choice B, Transport oxygen, is incorrect as this is mainly the function of red blood cells. Choice D, Antibody formation, is incorrect as antibody production is primarily carried out by B lymphocytes.