A nurse is teaching a class about sleep disorders. The nurse should include that which of the following conditions can cause obstructive sleep apnea (OSA)
Heart failure
Brainstem injury
Recent weight loss
Enlarged tonsils
The Correct Answer is D
A) Heart failure:
While heart failure can cause a variety of symptoms, including shortness of breath, fatigue, and nocturnal respiratory disturbances, it is not a direct cause of obstructive sleep apnea (OSA). However, heart failure can exacerbate the effects of sleep apnea, particularly in individuals who already have OSA, leading to a condition known as "central sleep apnea with Cheyne-Stokes respiration.
B) Brainstem injury:
Brainstem injury can affect the regulation of breathing and may lead to central sleep apnea, where the brain fails to send the proper signals to the muscles that control breathing. However, brainstem injury does not directly cause obstructive sleep apnea, which is typically caused by physical blockages or obstructions in the upper airway.
C) Recent weight loss:
Recent weight loss is generally not associated with the development of obstructive sleep apnea. In fact, weight loss can sometimes reduce the severity of OSA in overweight or obese individuals. OSA is more commonly associated with excess weight and fat deposits around the neck and throat, which can contribute to airway obstruction during sleep.
D) Enlarged tonsils:
Enlarged tonsils, especially in children, are a well-known cause of obstructive sleep apnea (OSA). The enlarged tonsils can block the upper airway during sleep, leading to periods of apnea or hypopnea (reduced airflow). This obstruction can result in snoring, choking, and interrupted sleep.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) Decreased peripheral pulses:
Increased body temperature typically causes vasodilation rather than vasoconstriction, leading to improved blood flow rather than decreased. As a result, peripheral pulses are more likely to be normal or even increased in response to fever. Decreased peripheral pulses would be more indicative of conditions like shock or hypoperfusion, not fever.
B) Heart rate 108/min:
Fever causes an increase in metabolic demand, which often results in a compensatory increase in heart rate (tachycardia). This phenomenon, known as "fever tachycardia," occurs as the body attempts to circulate blood more rapidly to meet the increased oxygen and nutrient demands caused by elevated body temperature. A heart rate of 108 beats per minute is a normal response to fever, particularly when the temperature reaches 39°C (102.27°F).
C) Respiratory rate 10 breaths/min:
A respiratory rate of 10 breaths per minute is considered bradypnea (abnormally slow breathing), which is typically not associated with fever. Fever usually leads to an increase in respiratory rate (tachypnea) as the body attempts to cool itself through increased evaporation of sweat and breathing. A respiratory rate of 10 breaths/min is more likely to be seen in conditions like drug overdose, head injury, or respiratory depression, rather than fever.
D) Dilated pupils:
Dilated pupils (mydriasis) are typically associated with sympathetic nervous system activation, which can be caused by certain drugs, trauma, or neurological conditions. Fever, however, generally causes only mild changes in pupil size and is more likely to lead to constricted pupils (miosis) in response to certain stress hormones. Dilated pupils are not a typical finding with fever.
Correct Answer is C
Explanation
A) "I will wear earphones during this test":
This statement is incorrect. The Rinne test is a hearing test used to compare air conduction to bone conduction of sound. It is performed by placing a vibrating tuning fork near the ear canal (for air conduction) and then on the mastoid bone behind the ear (for bone conduction). Earphones are not used in this test.
B) "A small probe is placed inside my ear":
This statement is incorrect. A probe is typically used for other types of hearing tests, such as tympanometry or an auditory brainstem response (ABR) test, not the Rinne test. The Rinne test involves using a tuning fork, not a probe, and the tuning fork is placed near the ear canal (for air conduction) and on the mastoid bone (for bone conduction).
C) "A tuning fork is placed on my head":
This statement is correct. In the Rinne test, the tuning fork is initially struck to produce sound and then placed on the mastoid bone (behind the ear) to test bone conduction. Afterward, the vibrating tuning fork is moved to the front of the ear canal to test air conduction. The purpose of the test is to compare these two types of conduction. If air conduction is better than bone conduction, this suggests normal hearing, while equal or better bone conduction can indicate conductive hearing loss.
D) "Small electrodes are placed on my scalp":
This statement is incorrect. Electrodes on the scalp are typically used in an electroencephalogram (EEG) or other neurodiagnostic tests, not the Rinne test. The Rinne test focuses on hearing and does not require the use of electrodes. It uses a tuning fork to assess how well sound travels through air and bone.
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