health assessment practice questions

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: impetigo. The characteristics of moist, thin-roofed vesicles with a thin erythematous base are classic features of impetigo, a bacterial skin infection commonly seen in children. Impetigo is highly contagious and commonly affects the face and buttocks. The presence of blisters and scabs further supports the diagnosis of impetigo. Explanation of other choices: A: Eczema typically presents as dry, itchy patches of skin with redness and scaling. It does not usually manifest as vesicles or blisters. C: Herpes zoster, also known as shingles, presents as a painful rash with grouped vesicles on one side of the body along a nerve pathway. It is uncommon in children and usually affects older individuals. D: Diaper dermatitis is a common rash in infants due to prolonged skin exposure to urine and feces. It typically presents as redness, irritation, and possibly skin breakdown in the diaper

Correct Answer: C

Rationale: The correct answer is C because the frontal sinuses are indeed fairly well developed at birth. This is true as the frontal sinuses start developing around the age of 7-8 years but are present in a rudimentary form at birth. This is because the frontal bone grows rapidly in the first few years of life, allowing for the development of the frontal sinuses. Choice A is incorrect because the sphenoid sinuses are not at full size at birth; they continue to develop throughout childhood. Choice B is incorrect as the maxillary sinuses reach full size around the teenage years, not after puberty. Choice D is incorrect as the frontal sinuses are also present at birth, along with the maxillary and ethmoid sinuses.

Correct Answer: C

Rationale: Step-by-step rationale: 1. Anisocoria is a condition where pupils are of unequal size. 2. It is typically caused by issues in the eye muscles or nerves controlling pupil size. 3. The nurse would expect to observe pupils of different sizes. 4. Dilated pupils (choice A) and excessive tearing (choice B) are not indicative of anisocoria. 5. An uneven curvature of the lens (choice D) does not directly relate to pupil size differences. Summary: Correct answer C is supported by the definition of anisocoria and its usual presentation. Choices A, B, and D are incorrect as they do not align with the characteristic feature of anisocoria.

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.