Kidney Stone Prevention in Sharjah

What is kidney stone prevention?

Kidney stone prevention is the metabolic side of stone care. Clearing a stone deals with the one already there; prevention asks why it formed and how to stop the next one. Stones grow when urine carries more of a stone-forming substance, such as calcium, oxalate or uric acid, than it can keep dissolved. Some people also have too little of the natural inhibitors, such as citrate, that normally keep crystals apart.

At Dar Al Kamal Hospital, Sharjah this work sits with the nephrologist, a kidney physician. Removing or breaking up a stone belongs to our urologists through kidney stone treatment and lithotripsy, and many patients move between the two teams.

Who needs it

A prevention assessment is most useful if you:

• Have had more than one stone, or one stone in each kidney
• Formed your first stone young
• Have a single working kidney, or kidney function that is already reduced
• Have a family history of stones
• Have bowel disease, previous bowel or weight-loss surgery, gout, or a parathyroid problem
• Have stones made of uric acid or other less common types
• Work outdoors or in hot kitchens, workshops or vehicles for long shifts

People who have had one ordinary stone usually do well with general fluid and diet advice, and the urologist or nephrologist can advise whether a fuller workup is worthwhile.

What happens

The consultation starts with your stone history, your job and daily fluid intake, what you eat, and every tablet, supplement and herbal product you take. High-dose vitamin C, some slimming products and protein powders popular in UAE gyms can all shift urine chemistry.

Stone analysis. If you have kept a stone or fragment, the laboratory identifies what it is made of. This single result shapes the whole plan, because calcium oxalate, uric acid and infection-related stones are each prevented differently.

24-hour urine collection. You collect all your urine for one full day and night in containers from the laboratory. It measures how much urine you make and how much calcium, oxalate, uric acid, citrate, sodium and other substances pass through. Many patients are surprised to learn that their total urine volume is the most revealing number on the report.

Blood tests check kidney function, calcium, uric acid and related salts, and sometimes the hormone that controls calcium. A kidney ultrasound through radiology may be arranged to look for stones still in the kidney.

The nephrologist then builds a plan around your results:

• Fluids. The goal is plenty of pale urine across the whole day. In UAE summer heat, sweat carries away much of what you drink, so an outdoor worker or someone commuting in heat needs to drink well beyond thirst and spread it through the day, including during night shifts. Water is the best base; citrus juices diluted in water can add helpful citrate.
• Salt. Extra sodium pushes more calcium into urine. Cutting down on processed food, stock cubes, pickles and restaurant meals helps.
• Animal protein. Large portions of red meat, chicken and fish raise uric acid and lower citrate. Moderate portions are the aim, and protein supplements are best reviewed with the doctor.
• Oxalate. Spinach, nuts, beetroot, strong tea and chocolate are high in oxalate. The nephrologist explains which matter for you, so you can keep a varied diet.
• Keep your calcium. This surprises most patients: eating normal amounts of dairy with meals lowers stone risk, because calcium binds oxalate in the gut before it reaches the kidney. Cutting out dairy tends to raise oxalate in urine. Calcium tablets are a separate question, so ask before taking them.
• Medicines. Where diet and fluid alone leave the urine chemistry high-risk, a medicine may be added to raise citrate, lower urine calcium or reduce uric acid, chosen to match your results.

Detailed renal dietary advice comes from the nephrologist, and a renal dietitian can be arranged by referral where more support is needed.

Preparing for it

Bring any stone you have passed, dry, in a clean container, plus previous scans, stone reports and blood results. For the 24-hour collection, choose a typical day on which you can stay near the containers, eat and drink as you usually do, and follow the written instructions from the laboratory carefully. The collection should reflect ordinary life, so keep your normal routine that day. If you fast in Ramadan, discuss timing so the test reflects your usual pattern.

Afterwards

You leave with a written plan covering your daily fluid target, the diet changes that apply to you and any medicine. A repeat 24-hour urine collection is often arranged after the changes settle in, to confirm the plan is working, and follow-up continues at intervals agreed with the nephrologist.

Call emergency services or go to the nearest emergency department if you have severe side or back pain with fever or shivering, pass very little or no urine, or vomit repeatedly and cannot keep fluids down. For new stone pain that is manageable, contact the hospital on 06 599 7777 so the urology team can see you.

Cost and insurance

Most UAE plans cover nephrology consultation and standard blood and urine tests. Stone analysis and the 24-hour urine panel are sometimes itemised separately, and some policies ask for pre-approval. Contact Dar Al Kamal Hospital, Sharjah on 06 599 7777 to confirm your cover before the tests.