Nokea
Which of the following structures is responsible for the initial mechanical breakdown of food during mastication?
- A. Tongue
- B. Pharynx
- C. Salivary glands
- D. Teeth
Correct Answer: D
Rationale: The correct answer is D: Teeth. Teeth are responsible for the initial mechanical breakdown of food during mastication. Step 1: Teeth use their hard surfaces to chew and grind food into smaller pieces. Step 2: This process increases the surface area of the food, making it easier for digestive enzymes to break down. Step 3: The tongue aids in moving the food around the mouth but does not break down the food mechanically. Pharynx is responsible for swallowing, not mastication. Salivary glands produce saliva that helps in the lubrication and digestion of food, but they do not directly participate in the mechanical breakdown of food.
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1HIV transmission from mother to infant occur at post natal period during ________
- A. Bathing
- B. Bottlefeeding
- C. Washing of vagina
- D. Breastfeeding
Correct Answer: D
Rationale: The correct answer is D: Breastfeeding. HIV transmission from mother to infant can occur through breast milk due to the presence of the virus in breast milk. Other choices such as A: Bathing, B: Bottlefeeding, and C: Washing of vagina do not involve direct contact with potentially infected body fluids like breast milk, making them less likely to transmit the virus. Breastfeeding is a well-documented mode of HIV transmission from mother to infant, hence it is the correct choice in this scenario.
A Patients to take regularly Lithium after discharged. The MOST important information to impart to the patient and his family is that the patient should
- A. not eat foods which has high tyramine content like cheese, wine, liver
- B. limit his fluid intake
- C. have a limited intake of sodium
- D. have an adequate intake of sodium
Correct Answer: C
Rationale: The correct answer is C, to have a limited intake of sodium. Lithium can lead to increased sodium levels in the body, potentially causing toxicity. By limiting sodium intake, the patient can maintain a balance and prevent adverse effects. Choice A is incorrect as tyramine content is not directly related to lithium intake. Choice B is incorrect as fluid intake does not have a significant impact on lithium levels. Choice D is incorrect because an adequate intake of sodium can lead to worsening lithium toxicity.
The nurse is working in a clinic that is designed to provide health education and immunization. As such, the clinic aims to provide_______________
- A. diagnosis and treatment
- B. Secondary prevention
- C. Primary prevention
- D. Tertiary prevention
Correct Answer: C
Rationale: The correct answer is C: Primary prevention. In this scenario, the clinic focuses on preventing disease before it occurs through health education and immunization. Primary prevention aims to promote general health and prevent the onset of diseases. It targets the entire population to reduce the risk of disease occurrence.
Incorrect Choices:
A: Diagnosis and treatment - This choice involves identifying and treating existing health conditions, which is not the primary focus of a clinic designed for health education and immunization.
B: Secondary prevention - This choice involves early detection and treatment of diseases to prevent complications, which is more focused on individuals who already have risk factors or symptoms, not on the general population.
D: Tertiary prevention - This choice involves managing and treating complications of diseases to prevent further deterioration, which is not the primary goal of a clinic focused on health education and immunization.
Which of the following conditions is characterized by inflammation of the glomeruli in the kidneys, leading to hematuria, proteinuria, and hypertension?
- A. Acute tubular necrosis
- B. Acute glomerulonephritis
- C. Chronic kidney disease
- D. Nephrotic syndrome
Correct Answer: B
Rationale: The correct answer is B: Acute glomerulonephritis. Glomerulonephritis is characterized by inflammation of the glomeruli in the kidneys, leading to symptoms like hematuria (blood in urine), proteinuria (excess protein in urine), and hypertension (high blood pressure).
Acute tubular necrosis (A) involves damage to the renal tubules, not the glomeruli. Chronic kidney disease (C) refers to long-term kidney damage and may not always present with the classic symptoms mentioned. Nephrotic syndrome (D) involves excessive protein loss in urine but may not always involve inflammation of the glomeruli.
Which of the following is an example of a PRIMARY) source in a research study?
- A. A textbook of medical-surgical nursing
- B. A doctoral dissertation that critiques all research in the area of attention deficit disorder
- C. A published commentary on the findings of another study
- D. A journal article about a study that used large, previously unpublished databases generated
Correct Answer: D
Rationale: The correct answer is D because a journal article about a study using large, previously unpublished databases is a primary source as it presents original research findings firsthand. It contributes new knowledge to the field. A textbook (A) compiles existing information, not original research. A doctoral dissertation (B) critiques research but is not a primary source. A published commentary (C) interprets others' findings, making it a secondary source.