A client is being prepared for cardiac catheterization. The nurse performs an initial assessment and records the vital signs. Which of the following data collected can be classified as subjective data?

Correct Answer: B

Rationale: Subjective data refers to information provided by the client based on their feelings, perceptions, or beliefs. Nausea is a symptom that the client experiences and reports subjectively. The client feels nauseous, which is not something directly measurable like blood pressure, heart rate, or respiratory rate. Therefore, nausea is the correct choice for subjective data. Blood pressure, heart rate, and respiratory rate are all objective data that can be measured and observed. Blood pressure, heart rate, and respiratory rate are all objective data that can be measured and observed.

Correct Answer: B

Rationale: The correct answer is B because having the head of the bed at a 30-degree angle can cause the radioactive material to shift, potentially leading to an uneven distribution of radiation. This could result in harmful exposure to surrounding tissues. A: Maintaining the client on strict bed rest is important to prevent displacement of the radioactive applicator. C: Providing a complete bed bath each morning is necessary for hygiene and does not pose a radiation hazard. D: Checking the applicator's position every 4 hours is essential to ensure proper placement and does not indicate a radiation hazard.

Correct Answer: B

Rationale: The correct answer is B: An above-normal anti-deoxyribonucleic acid. In SLE, the body produces antibodies against its own DNA, leading to the presence of anti-dsDNA antibodies. Elevated levels of anti-dsDNA antibodies are specific to SLE, confirming the diagnosis. A: Increased total serum complement levels are seen in SLE due to complement activation but are not specific to SLE. C: Negative antinuclear antibody test is not consistent with SLE, as ANA positivity is common in SLE. D: Negative lupus erythematosus cell test is not specific to SLE as lupus erythematosus cells are not always present.

Correct Answer: C

Rationale: The correct answer is C. Hormonal imbalances are the primary cause of BPH in aging males. As men age, testosterone levels decrease and estrogen levels may increase relative to testosterone, leading to prostate gland growth. This is why hormonal imbalances are more likely the cause of BPH in older males. Explanation of other choices: A: Chronic infection of the urinary tract does not directly cause BPH, although it can lead to similar symptoms such as urinary frequency and urgency. B: Chronic cigarette smoking is not a direct cause of BPH, although it can contribute to overall prostate health and exacerbate symptoms. D: Chronic obstruction of the bladder due to stone is a separate condition from BPH, although it can cause similar urinary symptoms.

Correct Answer: A

Rationale: Correct Answer: A Rationale: 1. Dressing changes twice a day help maintain a clean wound environment, reducing the risk of infection. 2. Regular dressing changes promote proper wound healing by facilitating moisture balance and removal of dead tissue. 3. It is a direct intervention that addresses the patient's poor wound healing. 4. Teaching the patient about signs of infection (B) is important but does not directly address the wound healing process. 5. Instructing the family on dressing changes (C) is helpful but should not substitute direct patient care. 6. Refocusing the patient from body image changes (D) is not directly related to improving wound healing.

Correct Answer: A

Rationale: The correct answer is A because successful treatment of diabetes insipidus aims to reduce excessive urine output and dehydration. A fluid intake of less than 2,500mL in 24 hours indicates proper control of fluid balance. Choice B is incorrect because urine output of more than 200mL/hour suggests ongoing excessive fluid loss, which is not indicative of successful treatment. Choice C is incorrect as a blood pressure of 90/50mmHg is low and may indicate hypotension, which is not a specific indicator of successful diabetes insipidus treatment. Choice D is incorrect because a pulse rate of 126 beats/min is not a direct marker of diabetes insipidus treatment success. In summary, the correct indicator of successful treatment of diabetes insipidus is a reduction in fluid intake, option A, as it signifies improved fluid balance and hydration status.

Correct Answer: A

Rationale: Correct Answer: A: Respiratory acidosis Rationale: 1. Respiratory acidosis is caused by inadequate ventilation leading to increased PCO₂ and decreased pH. 2. Low pH indicates acidosis, and high PCO₂ indicates respiratory component. 3. Metabolic acidosis (B) results from non-respiratory causes. 4. Respiratory alkalosis (C) is characterized by high pH and low PCO₂. 5. Metabolic alkalosis (D) is caused by non-respiratory factors with high pH.

Correct Answer: C

Rationale: Correct Answer: C - Diffusion Rationale: Diffusion is the movement of a substance from an area of higher concentration to an area of lower concentration. This process occurs naturally to achieve equilibrium. In the context of fluids and electrolytes, this movement helps maintain balance within the body. Unlike osmosis, which involves the movement of water molecules across a semi-permeable membrane, diffusion applies to the movement of all types of substances. Filtration involves the movement of substances through a barrier under pressure, and active transport requires energy to move substances against a concentration gradient. Therefore, the correct answer is diffusion as it aligns with the principle of movement from high to low concentration for achieving equilibrium.

Correct Answer: D

Rationale: The correct answer is D because sickle cell disease is an autosomal recessive genetic disorder. The disease is caused by inheriting two copies of the abnormal hemoglobin gene (HbS). In choice D, the father is HbA (normal) and the mother is HbS (carrier). This combination ensures that the child will inherit one normal gene and one abnormal gene, making them a carrier like the mother but not affected by the disease. Choices A, B, and C all involve at least one parent who carries the HbS gene, increasing the risk of the child having sickle cell disease.