A nurse is to infuse two 1L bags of normal saline to a patient at 80ml/hr. How many hours will it take to infuse the total amount of normal saline?
(Round to the whole number. Assume no interruptions in the infusion.)

A. Increase sodium intake - This is not a preventive measure for osteoporosis. High sodium intake can lead to increased calcium excretion and weaken bones.

B. Drink a cup of coffee each morning - Caffeine consumption, especially in excess, can interfere with calcium absorption and increase calcium excretion. Limiting caffeine intake is recommended for bone health. Drinking coffee in moderation is acceptable but excessive consumption should be avoided.

C. Have a bone-density scan each year - While bone-density scans (DEXA scans) are useful for diagnosing osteoporosis or assessing bone health, they are not typically recommended for young adults with a family history of osteoporosis unless there are specific risk factors present. Yearly scans are unnecessary and not cost-effective for young adults without significant risk factors.

D. Engage in weight-bearing exercise regularly - Weight-bearing exercises, such as walking, jogging, dancing, and resistance training, help to increase bone density and strength. Regular physical activity, especially weight-bearing exercises, is a recommended preventive measure against osteoporosis.

A. Urine culture and sensitivity
Explanation: A urine culture and sensitivity test involves growing bacteria from a urine sample in a laboratory setting. Once the bacteria have grown, they are exposed to different antibiotics to see which one is most effective in inhibiting their growth. This helps healthcare providers identify the specific strain of bacteria causing the infection and choose the most appropriate antibiotic treatment.

B. Serum creatinine level
Explanation: Serum creatinine level is a blood test used to measure kidney function. It evaluates how well the kidneys are filtering waste from the blood. While important for assessing kidney health, it does not determine the specific bacteria causing a urinary tract infection or the appropriate antibiotic treatment.

C. Urinalysis
Explanation: Urinalysis is a broad screening test that assesses various components in the urine, such as red and white blood cells, protein, glucose, and bacteria. While it can detect signs of a urinary tract infection (such as the presence of bacteria and white blood cells), it does not identify the specific bacterial strain causing the infection or provide information about antibiotic sensitivity.

D. Kidney scan
Explanation: A kidney scan, also known as a renal scan, is a medical imaging technique used to assess the structure and function of the kidneys. It can help diagnose conditions like kidney stones, urinary obstruction, or kidney infections. However, it does not determine the strain of bacteria causing a urinary tract infection or guide antibiotic treatment.