Correct Answer: C

Rationale: The correct answer is C (900 mL) because the weight of 900 g corresponds to a blood loss of the same amount in milliliters. Blood density is close to that of water, so 1 g ≈ 1 mL. Therefore, a blood-soaked peripad weighing 900 g indicates a blood loss of 900 mL. Choice A (1800 mL) is incorrect as it doubles the weight instead of converting it to milliliters. Choice B (450 mL) is incorrect as it halves the weight. Choice D (90 mL) is incorrect as it divides the weight by 10, which is too small for the blood loss indicated.

Correct Answer: C

Rationale: Step 1: Malnourishment often leads to iron deficiency anemia, causing spoon-shaped nails (koilonychia). Step 2: Koilonychia is a classic sign of chronic malnutrition and iron deficiency. Step 3: Moist lips (A) and pink conjunctivae (B) are not specific to malnourishment. Step 4: Not easily plucked hair (D) is more related to hair health rather than malnutrition.

Correct Answer: A

Rationale: The correct answer is A: Diabetic retinopathy. This is because diabetic retinopathy is a leading cause of blindness in adults over 40, resulting from diabetes affecting blood vessels in the retina. Trauma (B) is a common cause of visual impairment but not as prevalent as diabetic retinopathy in this age group. Macular degeneration (C) primarily affects older individuals, typically over 50, rather than those over 40. Cytomegalovirus (D) is a cause of blindness in immunocompromised individuals, not specific to the age group mentioned. Glaucoma (E) is a leading cause of blindness worldwide but is more common in older adults and not specifically over 40.

Correct Answer: D

Rationale: Correct Answer: D Rationale: 1. Clear, watery fluid draining from the ear post-accident indicates a possible cerebrospinal fluid (CSF) leak, a serious condition requiring immediate medical attention to prevent complications such as meningitis. 2. CSF leak can result from a basilar skull fracture, common in head injuries like motorcycle accidents. 3. Prompt reporting of this finding by the nurse is crucial for timely intervention and prevention of potential life-threatening complications. Summary: A: Visualizing the malleus during otoscopic examination is normal and not an immediate concern in this scenario. B: A pearly gray tympanic membrane is a normal finding and does not indicate a serious issue post-accident. C: Tenderness in the mastoid area may suggest injury but is not as urgent as clear, watery fluid drainage indicative of a CSF leak.

Correct Answer: A

Rationale: The correct answer is A: Diabetes. Erectile dysfunction can be caused by organic factors, such as diabetes, which affects blood flow and nerve function. Diabetes can lead to damage of blood vessels and nerves, impacting the ability to achieve and maintain an erection. Testosterone deficiency (choice B) can also contribute to erectile dysfunction, but it is not an organic cause. Anxiety (choice C) and depression (choice D) are psychological factors that can lead to erectile dysfunction, not organic causes. Parkinsonism (choice E) can affect sexual function, but it is not a common organic cause of erectile dysfunction.