Nursing Elites

1. After 1 week of hospitalization, Mr. Gray develops hypokalemia. Which of the following is the most significant symptom of his disorder?

• A. Lethargy
• B. Increased pulse rate and blood pressure
• C. Muscle weakness
• D. Muscle irritability

Correct answer: C

Rationale: Muscle weakness is a hallmark symptom of hypokalemia. Hypokalemia refers to low levels of potassium in the blood, which can affect muscle function. The decreased potassium levels can lead to muscle weakness, cramping, and even paralysis. These symptoms can impact various muscle groups in the body, making muscle weakness the most significant symptom to monitor and address in patients with hypokalemia.

2. Which instrument is used for auscultation?

• A. Percussion hammer
• B. Audiometer
• C. Stethoscope
• D. Sphygmomanometer

Correct answer: C

Rationale: Auscultation involves listening to internal sounds in the body, such as heart and lung sounds. The instrument used for auscultation is a stethoscope, which allows healthcare providers to listen to these sounds. The percussion hammer is used to elicit sounds on the body, the audiometer is used to measure hearing ability, and the sphygmomanometer is used to measure blood pressure. Therefore, the correct answer is 'Stethoscope.'

3. In which of the following organs does the exchange of gases take place?

• A. Kidneys
• B. Lungs
• C. Liver
• D. Heart

Correct answer: B

Rationale: The exchange of gases, specifically oxygen and carbon dioxide, occurs in the lungs. In the lungs, oxygen from the air we breathe enters the bloodstream, while carbon dioxide is removed from the bloodstream and exhaled. This process is essential for respiration and supplying the body with oxygen for energy production. The kidneys filter waste from the blood to produce urine and regulate fluid balance (Choice A). The liver is involved in detoxification, protein synthesis, and producing bile (Choice C). The heart is responsible for pumping blood throughout the body to deliver oxygen and nutrients (Choice D).

4. What is another name for the knee-chest position?

• A. Genu-dorsal
• B. Genu-pectoral
• C. Lithotomy
• D. Sim’s

Correct answer: B

Rationale: The knee-chest position is correctly identified as the genu-pectoral position. In this position, a person rests on their knees and chest with the abdomen raised and the head turned to one side. This position is commonly used in medical examinations and procedures involving the rectal or pelvic areas, allowing for better visualization and access. Choice A, 'Genu-dorsal,' is incorrect as it does not refer to the knee-chest position. Choice C, 'Lithotomy,' is incorrect as it refers to a position where the patient is lying on their back with legs flexed and feet in stirrups, commonly used during childbirth or certain surgeries. Choice D, 'Sim’s,' is incorrect as it refers to a position where the patient lies on their left side with the right knee and thigh drawn up with the left arm placed along the back.

5. Which of the following vascular system changes result from aging?

• A. Increased peripheral resistance of the blood vessels
• B. Decreased blood flow
• C. Increased workload of the left ventricle
• D. All of the above

Correct answer: D

Rationale: As individuals age, various changes occur in the vascular system. These changes include increased peripheral resistance of the blood vessels, decreased blood flow, and an increased workload of the left ventricle. Therefore, all the listed changes result from aging, making option D, 'All of the above,' the correct answer.

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