Sensitivity is the ability of a screening test to accurately identify what aspect of the screening?

Correct Answer: B

Rationale: The correct answer is B: Persons who have the disease. Sensitivity measures how well a test correctly identifies individuals who have the disease (true positives). It is essential in determining the test's ability to detect the presence of the disease accurately. Choices A, C, and D are incorrect because sensitivity focuses on correctly identifying individuals who have the disease, not those with symptoms, those without the disease, or those with a diagnosis of the disease.

Correct Answer: C

Rationale: The correct answer is C: Platelet count. Platelet count should be monitored closely during clopidogrel therapy because it works by inhibiting platelet aggregation, reducing the risk of clot formation. Monitoring platelet count helps assess the drug's effectiveness and prevent potential complications like bleeding or clotting events. Prothrombin time (A), activated partial thromboplastin time (B), and international normalized ratio (D) are tests that primarily assess the coagulation factors and are not directly affected by clopidogrel therapy, making them less relevant for monitoring this specific medication.

Correct Answer: A

Rationale: The correct answer is A: Plasmodium falciparum. Plasmodium falciparum is the most likely causative agent because the patient's symptoms of fever, chills, headache, and myalgia, along with the presence of intraerythrocytic ring forms and trophozoites on blood smear, are characteristic of malaria, particularly caused by P. falciparum in sub-Saharan Africa. Summary of other choices: B: Trypanosoma cruzi causes Chagas disease, which presents with symptoms like fever, rash, and swelling at the site of entry, not consistent with the patient's presentation. C: Borrelia burgdorferi causes Lyme disease, which typically presents with a characteristic rash (erythema migrans) and arthritis, not matching the patient's symptoms. D: Leishmania donovani causes visceral leishmaniasis, which presents with symptoms like weight loss, hepatosplen

Correct Answer: B

Rationale: Plantar fasciitis is the correct answer. It is characterized by inflammation of the plantar fascia, leading to heel pain, especially in the morning. The plantar fascia is a band of tissue that connects the heel bone to the toes. The pain is usually worse with the first steps after resting. Achilles tendinitis involves inflammation of the Achilles tendon, which connects the calf muscles to the heel bone, causing pain at the back of the heel and ankle. Morton's neuroma is a condition involving a thickening of tissue around a nerve in the ball of the foot, leading to sharp, burning pain in the toes. Stress fracture of the calcaneus refers to a small crack in the heel bone due to repetitive stress or overuse, resulting in heel pain that may worsen with activity, but not specifically with the first steps in the morning.

Correct Answer: B

Rationale: Correct Answer: B Rationale: 1. Asking the patient about their cultural background and preferences shows respect for their individuality and acknowledges the importance of cultural competence in providing person-centered care. 2. It allows the nurse to gain valuable insights into the patient's beliefs, values, and practices, enabling them to deliver culturally appropriate care. 3. By prioritizing this aspect, the nurse can establish rapport, build trust, and enhance communication with the patient, leading to better outcomes. 4. Choices A, C, and D are incorrect as they either involve assumptions, avoidance, or disregard for the patient's cultural background, which can lead to misunderstandings, discomfort, and ineffective care.

Correct Answer: A

Rationale: The correct answer is A: Implement environmental modifications to promote sleep hygiene. Delirium is often triggered by environmental factors like noise, light, and disruption of sleep. By optimizing the environment for rest and minimizing stimuli, the patient's delirium can improve. This approach focuses on addressing the root cause rather than just managing symptoms. Choice B is incorrect because antipsychotic medications can worsen delirium and are not recommended as first-line treatment. Choice C is not the priority as ruling out focal deficits may be important but does not directly address the delirium. Choice D is incorrect as benzodiazepines can exacerbate delirium and are not recommended due to their potential to worsen cognitive function.

Correct Answer: A

Rationale: The correct answer is A: Active artificial immunity. This is because the person's immune system is actively stimulated by the vaccine to produce antibodies against Covid-19. It is considered artificial because it is acquired through vaccination rather than natural exposure to the disease. B: Active natural immunity is incorrect because it refers to immunity acquired through natural exposure to the disease. C: Passive natural immunity is incorrect because it refers to temporary immunity passed from mother to baby through breast milk or placenta. D: Passive artificial immunity is incorrect because it refers to receiving pre-formed antibodies, such as through an injection of antibodies rather than the body producing them itself.

Correct Answer: C

Rationale: In a postpartum client complaining of persistent, heavy vaginal bleeding, the most appropriate nursing action is to assess vital signs and uterine tone. This is important to determine if the bleeding is within normal limits or if there is a potential postpartum hemorrhage (PPH) occurring. Monitoring vital signs can help identify signs of shock, while assessing uterine tone can help determine if the uterus is contracting effectively to control bleeding. Prompt assessment and early detection of PPH are crucial for effective management and prevention of complications. Encouraging increased fluid intake, applying a cold compress, and administering pain medication may be appropriate interventions in some situations, but assessing vital signs and uterine tone take priority in this scenario.

Correct Answer: D

Rationale: The correct answer is D: advocacy. Advocacy involves actively supporting and promoting the welfare and rights of the patient. Nurses advocate for their patients by ensuring their health, safety, and personal rights are upheld. This ethical principle goes beyond just fulfilling responsibilities or being accountable for one's actions. Responsibility (A) focuses on duties and tasks, accountability (B) is about being answerable for one's actions, and confidentiality (C) pertains to maintaining patient privacy. In this context, advocacy is the most appropriate choice as it encompasses actively working to protect and promote the best interests of the patient.