Nokea
Choose the condition th₃a⁻t exhibits blood values with a low pH and a low plasma bicarbonate concentration:
- A. Respiratory acidosis
- B. Metabolic acidosis
- C. Respiratory alkalosis
- D. Metabolic alkalosis
Correct Answer: B
Rationale: Step-by-step rationale:
1. Metabolic acidosis is characterized by low pH and low plasma bicarbonate.
2. In this condition, there is an excess of acids or a loss of bicarbonate.
3. The kidneys are unable to adequately excrete acids or retain bicarbonate.
4. This leads to a decrease in bicarbonate levels and a decrease in pH.
5. Respiratory acidosis (A) is characterized by low pH and high CO2 levels.
6. Respiratory alkalosis (C) is characterized by high pH and low CO2 levels.
7. Metabolic alkalosis (D) is characterized by high pH and high bicarbonate levels.
Summary:
- Choice A is incorrect as it describes a condition with high CO2 levels.
- Choice C is incorrect as it describes a condition with high pH.
- Choice D is incorrect as it describes a condition with high bicarbonate levels.
- Choice B is correct as it accurately describes the characteristics of a condition with low pH
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A client is diagnosed with metastatic adenocarcinoma of the stomach. The physician prescribes mitomycin (Mutamycin) with other chemotherapeutic agents for palliative treatment. How mitomycin does exert its cytotoxic effects?
- A. It inhibits deoxyribonucleic acid (DNA) synthesis
- B. It’s cell cycle-phase specific
- C. It inhibits ribonucleic acid (RNA) synthesis
- D. It inhibits protein synthesis
Correct Answer: A
Rationale: The correct answer is A: It inhibits deoxyribonucleic acid (DNA) synthesis. Mitomycin works by cross-linking DNA, leading to inhibition of DNA synthesis and ultimately causing cell death. This mechanism of action makes it effective against rapidly dividing cancer cells.
B: It’s cell cycle-phase specific - This is incorrect because mitomycin is not specific to a particular phase of the cell cycle.
C: It inhibits ribonucleic acid (RNA) synthesis - This is incorrect as mitomycin primarily targets DNA synthesis, not RNA synthesis.
D: It inhibits protein synthesis - This is incorrect as mitomycin's main mechanism of action is through DNA cross-linking, not protein synthesis inhibition.
Which of the ff interventions is implemented for a client with empyema?
- A. Teach the client breathing exercises
- B. Offer assurance that empyema takes less time to resolve
- C. Recommend that the client eat a balanced but light diet
- D. Emphasize the completion of the entire course of drug therapy
Correct Answer: D
Rationale: The correct answer is D: Emphasize the completion of the entire course of drug therapy. Empyema is a serious condition that requires antibiotic treatment. Emphasizing the completion of the entire course of drug therapy is crucial to ensure that the infection is completely eradicated and to prevent the development of drug-resistant strains. Teaching breathing exercises (choice A) may help improve lung function but is not the primary intervention for empyema. Offering assurance that empyema takes less time to resolve (choice B) is incorrect as it can mislead the client about the seriousness of the condition. Recommending a balanced but light diet (choice C) may be beneficial for overall health but is not directly related to treating empyema.
Biopsy is a diagnostic procedure which:
- A. Detects the presence of malignant cells
- B. Measures hemoglobin content
- C. Measures the RBC size
- D. Detects arterial occlusion Situation: Cancer ranks third in leading cause of morbidity and mortality in the Philippines. Early detection Increases the survival rate of those afflicted. You are a nurse in a cancer-prevention and screening clinic and are for health education.
Correct Answer: A
Rationale: The correct answer is A: Detects the presence of malignant cells. Biopsy involves taking a sample of tissue to examine under a microscope for the presence of abnormal or cancerous cells. This procedure is crucial for diagnosing cancer accurately.
Choice B (Measures hemoglobin content) is incorrect because hemoglobin content is typically measured through blood tests, not biopsies.
Choice C (Measures the RBC size) is incorrect as RBC size is usually assessed through a complete blood count (CBC) test, not a biopsy.
Choice D (Detects arterial occlusion) is incorrect because arterial occlusion is typically diagnosed through imaging studies like Doppler ultrasound or angiography, not through a biopsy procedure.
The nurse is caring for a 32-year old client admitted with pernicious anemia. Which set of findings should the nurse expect when assessing the client?
- A. Pallor, bradycardia, and reduced pule
- B. Sore tongue, dyspnea, and weight gain
- C. Angina, double vision, and anorexia
- D. Pallor, tachycardia, and a sore tongue
Correct Answer: D
Rationale: The correct answer is D: Pallor, tachycardia, and a sore tongue. Pernicious anemia is caused by a deficiency in vitamin B12, leading to symptoms such as pallor (due to decreased red blood cells), tachycardia (as the heart works harder to compensate for decreased oxygen-carrying capacity of the blood), and a sore tongue (due to inflammation of the tongue).
Choice A is incorrect because bradycardia would not be expected in pernicious anemia, and reduced pulse is not a typical finding. Choice B is incorrect because weight gain is not a common symptom of pernicious anemia. Choice C is incorrect because angina and double vision are not typical findings of pernicious anemia, and anorexia is more likely due to other causes.
A 27-year old adult is admitted for treatment of Crohn’s disease. Which information is most significant when the nurse assesses nutritional health?
- A. Anthropometric measurements
- B. dry skin
- C. bleeding gums
- D. facialrubor
Correct Answer: A
Rationale: The correct answer is A: Anthropometric measurements. This includes height, weight, and body mass index, which are crucial indicators of the nutritional status of a patient with Crohn's disease. It helps assess malnutrition, muscle wasting, and overall nutritional health. Dry skin (B), bleeding gums (C), and facial rubor (D) are not direct indicators of nutritional health in a patient with Crohn's disease. Dry skin may indicate dehydration, bleeding gums may suggest poor oral hygiene or gum disease, and facial rubor may be a sign of inflammation but are not specific to nutritional status.