Correct Answer: B

Rationale: Correct Answer: B Rationale: 1. Bluish lips indicate cyanosis, a sign of inadequate oxygen supply. 2. Dark line along gingival margin suggests lead poisoning. 3. The nurse should assess for other signs of inadequate oxygen supply to determine the severity and underlying cause. 4. This finding is not normal and requires further evaluation to prevent complications. Summary: A: Checking hemoglobin for anemia is not the immediate priority when cyanosis and lead poisoning are suspected. C: Assuming this is a normal finding can lead to overlooking a potentially serious condition. D: Carbon monoxide exposure could be a consideration, but assessing for overall oxygen supply is more crucial in this scenario.

Correct Answer: A

Rationale: The correct answer is A: parotid gland. This gland is located in the cheek in front of the ear. It is the largest salivary gland in the human body. The parotid gland secretes saliva into the mouth through Stenson's duct. The other choices are incorrect because Stenson's gland does not exist, the sublingual gland is located under the tongue, and the submandibular gland is located under the mandible. Therefore, the parotid gland is the only gland that fits the description given in the question.

Correct Answer: B

Rationale: The correct answer is B: parotid gland. The parotid gland is located in front of the ear lobe, and swelling below the angle of the jaw is a common sign of parotid gland inflammation. The tenderness and increasing size of the spot also point towards a parotid gland issue. The other choices, such as thyroid gland (A), occipital lymph node (C), and submental lymph node (D), are incorrect as they are not typically associated with the specific symptoms described by the patient. It is essential to consider the location and function of each structure to arrive at the correct diagnosis.

Correct Answer: D

Rationale: The presence of black and white dots on the tympanic membrane and ear canal wall during an otoscopic examination suggests a yeast or fungal infection. This is because yeast or fungal infections commonly present as white or black dots in the ear canal. Malignancy would typically manifest as abnormal growths or masses, not dots. Viral infections usually do not present as specific dots on the tympanic membrane. Blood in the middle ear would appear as red or pinkish fluid behind the eardrum, not as black and white dots. Therefore, the correct answer is D: Yeast or fungal infection.

Correct Answer: B

Rationale: The correct answer is B: the patient can read at 6.1 m (20 ft) what a person with normal vision can read at 9.1 m (30 ft). This is because the Snellen notation 20/30 means that the patient can read at 20 feet what a person with normal vision can read at 30 feet. This ratio signifies the patient's visual acuity compared to a person with normal vision. The other choices are incorrect as they do not accurately interpret the Snellen notation or misinterpret the distance at which the patient can read the eye chart.