health assessment practice questions

Correct Answer: C

Rationale: The correct answer is C: Hydrocephalus. The nurse suspects hydrocephalus due to the symptoms presented by the infant: enlarged cranium, small face, dilated scalp veins, and "setting sun" eyes. Hydrocephalus is the abnormal accumulation of cerebrospinal fluid in the brain, leading to increased intracranial pressure and characteristic physical signs such as an enlarged head. Craniotabes (A) is softening of the skull bones, not associated with these symptoms. Microcephaly (B) is characterized by a smaller head size, opposite to what is described in the question. Caput succedaneum (D) is swelling of the soft tissues of the infant's scalp, which is unrelated to the symptoms mentioned.

Correct Answer: D

Rationale: Rationale for Correct Answer D: Tympanostomy tubes are inserted into the eardrum to help drain fluid from the middle ear, relieve pressure, and prevent infections. This is important in children who have recurrent ear infections or fluid buildup. By allowing drainage, the tubes help improve hearing and reduce the risk of complications. Summary of Incorrect Choices: A) Incorrect - Tympanostomy tubes are placed in the middle ear, not the inner ear. B) Incorrect - Tympanostomy tubes are used for conductive hearing loss, not sensorineural loss. C) Incorrect - Tympanostomy tubes are not permanently inserted and are usually removed after a period of time once they are no longer needed.

Correct Answer: B

Rationale: The correct answer is B: This is a bifid uvula, which is a common occurrence in some Aboriginal groups. 1. A bifid uvula is a condition where the uvula is split or divided, which is a common variation seen in some Aboriginal populations. 2. Cleft palate is a different condition involving a gap in the roof of the mouth, not specifically related to Aboriginal people. 3. Uvular injury is not a common cause of a split uvula in children, so reporting to authorities is unnecessary. 4. Torus palatinus is a bony growth on the roof of the mouth and not related to a split uvula or specific to Aboriginal populations.

Correct Answer: A

Rationale: The correct answer is A: otosclerosis. Otosclerosis is a condition where abnormal bone growth in the middle ear causes hearing loss. In this case, the patient's symptoms of progressive hearing loss improving with louder sounds suggest conductive hearing loss, which is commonly seen in otosclerosis. Other choices are incorrect because presbycusis is age-related hearing loss, trauma to the bones would typically result in sudden hearing loss, and frequent ear infections are more likely to cause temporary hearing loss rather than progressive loss.

Correct Answer: D

Rationale: The correct answer is D: It helps equalize air pressure on both sides of the tympanic membrane. The eustachian tube connects the middle ear to the nasopharynx, allowing for pressure equalization. During activities like swallowing or yawning, the tube opens to allow air to flow in or out, maintaining equal pressure. This function is crucial for proper hearing and preventing discomfort or damage to the tympanic membrane. Choice A is incorrect as cerumen is produced by ceruminous glands in the ear canal, not the eustachian tube. Choice B is incorrect as the eustachian tube normally remains closed and opens only intermittently during specific actions. Choice C is incorrect as the eustachian tube does not connect the middle and outer ear; it connects the middle ear to the nasopharynx.