Correct Answer: A

Rationale: The correct answer is A: decreased fibrinogen. In disseminated intravascular coagulation (DIC), there is widespread activation of coagulation leading to consumption of clotting factors like fibrinogen, resulting in decreased levels. Platelets are usually decreased, not increased, in DIC. Hematocrit may be elevated due to hemoconcentration but not directly related to DIC. Thromboplastin time would be prolonged, not decreased, in DIC due to consumption of clotting factors.

Correct Answer: A

Rationale: Rationale for Correct Answer A: Applying a protective eye shield at night is crucial for a patient with Bell's palsy to prevent corneal abrasions due to incomplete eyelid closure. This action helps protect the eye from dryness and injury, which can occur due to decreased blinking and moisture. It is essential to maintain eye health and prevent complications. Summary of Incorrect Choices: B: Chewing on the affected side does not prevent unilateral neglect in Bell's palsy. Instead, encouraging balanced chewing and facial exercises would be more beneficial. C: Avoiding the use of analgesics is not necessary for Bell's palsy management unless contraindicated, as pain management may be required for associated symptoms. D: Avoiding brushing the teeth is not recommended. Good oral hygiene is important for overall health, including maintaining oral health during Bell's palsy.

Correct Answer: D

Rationale: The correct answer is D: Labyrinthitis. This condition presents with sudden onset vertigo, nausea, vomiting, tinnitus, and hearing loss, which are all symptoms described by the patient. Labyrinthitis is commonly caused by a viral infection affecting the inner ear, leading to inflammation of the labyrinth. This inflammation disrupts the balance and hearing functions of the inner ear, resulting in the symptoms mentioned. A: Ossiculitis involves inflammation of the middle ear bones, typically causing conductive hearing loss, not the sudden onset of vertigo and other symptoms described. B: Mnire's disease is characterized by recurrent episodes of vertigo, tinnitus, and hearing loss, but it typically does not present with sudden onset incapacitating vertigo. C: Ototoxicity is caused by exposure to certain medications or chemicals that damage the inner ear structures, leading to hearing loss. While hearing loss is a symptom, the sudden onset of vertigo is not typically associated with ototoxicity.

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: B

Rationale: The correct answer is B: Healers. In the ETHNIC mnemonic, "H" stands for Healers, where the nurse assesses the individual's traditional healers, healthcare practices, and preferences for seeking healthcare. This is important in understanding the individual's cultural beliefs and practices related to health and treatment. Assessing "Health" (A) may be important, but it does not specifically address traditional healers. "History" (C) focuses on the individual's cultural background rather than healthcare practices. "Homeland" (D) pertains to the individual's place of origin, which is not directly related to healthcare communication.