Experienced and professional animal trainer provide their insights in answering this question :
A. High Calcium level is not a disease but only a sign. It may be due to several problems including tumour but not always. It may be due, for example overactive parathyroid gland or bone disease. Before starting treatment it is very important to investigate fully for all possible causes.

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High blood calcium (hypercalcaemia) can be caused by many diseases in cats including cancer, hormonal problems and vitamin D excess. Idiopathic hypercalcaemia (IHC) is likely the most common cause of high blood calcium in cats, however the cause of the disease is currently unknown and research is ongoing in this area.
Alendronate: This is an oral medication that is often prescribed when a cat is diagnosed with idiopathic hypercalcemia. Alendronate reduces bone resorption of calcium and helps to slow down bone loss. Diet: A change in diet may be indicated for cats with idiopathic hypercalcemia.
Prognosis. Idiopathic hypercalcemia is a treatable disease although patients require lifelong therapy and monitoring. Cats with idiopathic hypercalcemia that are diagnosed before evidence of organ damage occur generally enjoy a normal quality of life and survival.
If the hypocalcemia is severe, immediate correction of the decreased levels will require calcium injections. Most cats with severe hypocalcemia will need to be hospitalized until calcium levels stabilize, as this condition is potentially life threatening.
Hypercalcemia is caused by: Overactive parathyroid glands (hyperparathyroidism). This most common cause of hypercalcemia can stem from a small, noncancerous (benign) tumor or enlargement of one or more of the four parathyroid glands.
The types of cancers that are most commonly associated with high blood calcium are: myeloma – about 30 in 100 people (about 30%) have high calcium when they are first diagnosed. breast cancer. lung cancer.
Know that hypercalcemia is treatable and that symptoms usually go away once your calcium levels are back to normal. If you have cancer that can cause hypercalcemia, your provider will likely want to regularly monitor your blood calcium levels.
If left untreated, hypercalcemia can lead to serious complications. For example, if the bones continue to release calcium into the blood, osteoporosis, a bone-thinning disease, can result. If urine contains too much calcium, crystals may form in the kidneys. Over time, these crystals may combine to form kidney stones.
Severe hypercalcemia, defined variously in the literature as plasma calcium >3.5 mmol/L (14 mg/dL) or >4.0 mmol/L (16 mg/dL), is rare, but widely considered a potentially fatal condition that requires emergency treatment.
Pets with abnormally high calcium levels may show signs of weakness, listlessness, increased drinking and urination, and loss of appetite. In some pets, prolonged hypercalcemia may contribute to formation of bladder or kidney stones.
The condition may be transient, reversing with addressing the underlying cause expeditiously, or chronic and even lifelong, when due to a genetic disorder or the result of irreversible damage to the parathyroid glands after surgery or secondary to autoimmune destruction.
You can expect to see results within the first few weeks of treatment. Severe cases of calcium deficiency disease will be monitored at one- to three-month intervals.
You`ll usually find out that you have hypercalcemia through a blood test. If you don`t get it treated, high levels of calcium in your blood can lead to bone loss, kidney stones, kidney failure, and heart problems.
Primary hyperparathyroidism.

This is the most common cause of high blood calcium levels. People with primary hyperparathyroidism usually have a benign tumor of the parathyroid glands (see What are the parathyroid glands?

Alcohol and salty foods are catalysts for calcium flushing. As calcium levels in the blood decrease, the body extracts (resorbing) calcium from the bones to obtain the calcium it needs to function properly.
The majority of patients with primary hyperparathyroidism (PHP) respond to parathyroidectomy in the form of normalization of their serum calcium levels and PTH within 48 h; however, a certain group of patients will need more than 3 days.
IHC cats should be fed a wet-only diet with no acidifiers. a high-quality, canned or raw, high-meat-protein, moderate-fat, low-carbohydrate, grain-free diet should be tried. diets comparably lower in calcium then others should be used – contact manufacturers for values.
Initial therapy of severe hypercalcemia includes the simultaneous administration of intravenous (IV) isotonic saline, subcutaneous calcitonin, and a bisphosphonate (typically, IV zoledronic acid) (table 1). Isotonic saline – Most patients with severe hypercalcemia have marked intravascular volume depletion.
Hypercalcemia refers to an abnormally high concentration of calcium in the blood. Calcium circulates through the bloodstream and is needed by the body for bone health and many other processes. Proper levels of calcium ensure optimum function of your nerves, muscles, digestive tract, kidneys and even your heart.
Hypercalcaemia is a raised level of corrected calcium1 in the blood. It is the commonest life-threatening metabolic disorder in cancer patients, most frequently occurring in myeloma, breast, renal, lung and thyroid cancers.
Objective: Severe hypercalcemia is often considered an emergency because of a potential risk of cardiac arrest or coma.
In the U.S., cats are fed complete, balanced food that contains enough calcium to meet their dietary needs. So, before giving your cat extra calcium be sure to check with your vet. “Adding calcium to such a diet might lead to excess and issues like kidney or bladder stones (aka calcium oxalate uroliths),” says Sean J.
Symptoms of hypocalcemia most commonly include paresthesia, muscle spasms, cramps, tetany, circumoral numbness, and seizures.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. Why do cats meow?
ANSWER : A. Cat parents often wish they could better understand what their favorite feline friends want or desire. A cat’s meow can be interpreted in many different ways and can indicate an array of feelings and needs. Here are some of the most common reasons for your cat’s vocalizations:

1. Greeting- Many cats will meow as a greeting when you enter your home or walk into a room. Cats will also meow at another cat or animal in the household to extend a hello and acknowledge the other animal’s presence.

2. Attention – An exuberant meow followed by leg rubbing or another attention seeking behavior may indicate your cat is looking for some quality time spent together. Some petting or rubbing behind the ears may be in order.

3. Hunger – A meowing cat is often a hungry cat. This is one of the most common reasons for a cat to vocalize to their owners. A cat will meow to get your attention at feeding times or even when they want extra food.

4. Sickness – A sick or hurt cat may begin to meow excessively, warranting a visit to the veterinarian. There are numerous reasons for a cat in distress to meow—whether it is related to an upset stomach, an injured leg or a urinary blockage. These meows should be carefully investigated.

5. Entering or leaving – Most cats will vocalize when they want to be let in or out of a room. You may notice when you are in the bathroom or behind the closed door of a room that your cat begins to meow, scratches at the door, and often reaches its paw under the door. This is a clear indication that the cat wants to be where you are.

6. Angry – An agitated cat may meow to warn their owner or another household pet that they are upset and would like to be left alone. This angry meow may increase in sound volume as the cat becomes more stressed or agitated. Often a cat will exhibit this type of meow at the veterinary office when they are unhappy with their examination or restraint.

Each feline is different and so are their vocalizations. Learn to understand the variety of meows your cat uses on a daily basis. This will help you develop a better relationship with your cat and help them live a more trusting and happier life.

Q. My male 16+ year old cat has high Calcium Levels. What is the diagnosis and treatment. Vet said possible cancer and trying cortisone.
ANSWER : A. High Calcium level is not a disease but only a sign. It may be due to several problems including tumour but not always. It may be due, for example overactive parathyroid gland or bone disease. Before starting treatment it is very important to investigate fully for all possible causes.

Q. Male neutered cat [1 1/2 years old] has just started trying to spray everywhere around the house. Nothing is coming out. No recent changes.
ANSWER : A. Changes in urinary habits can be caused by a number of things, especially in neutered male cats. Attempting to urinate or have accidents in places other than the litter box can often be a sign of a urinary tract infection, or crystals and debris in the bladder causing problems. Pets may need to go more frequently, may dribble or urinate in small amounts more often, may have accidents or may have blood-tinged or cloudy urine.Infections are usually treated with medications and changes to the diet, however in some cases of large stones or crystals surgery may be needed.

Male cats can also experience urinary blockage. This is due to a unique anatomical part or the urethra that forms a U-shape before exiting the body in male cats. If a cat has crystals or other debris in the urine, it can block at this point preventing urine from being able to exit. Cats may attempt to urinate without producing anything, may become very vocal (indicating pain) or may have a hunched back, full abdomen or pain in the abdomen (protecting the very full bladder). Urinary blockage IS a medical emergency so if suspected, your vet or local emergency clinic should be contacted immediately. Treatment usually involves a hospital stay and catheterization of the bladder to remove the blockage and allow urine to drain followed by medications and a change in diet to prevent further problems.

It is best to try and collect a sample of urine and make an appointment for your cat if he has had a change in urinary habits. If you do suspect a blockage, then contact your vet ASAP is best.

Q. My cat continues to scratch on furniture and carpets. He has plenty of scratching posts around the house. Please help!
ANSWER : A. Scratching is a natural behavior in cats that can be frequently frustrating for pet owners who want to keep their furniture from being shredded on a constant basis. The texture of furniture and carpet is very appealing to cats and this why they frequently choose to spend their time on this activity as opposed to playing with their own cat toys. Here are some suggestions to help curb this unwanted behavior:

1. Purchase a cat scratching post or cat tree that is covered in carpeted or textured material. Place it in an appealing spot that your cat would be inclined to spend time (eg. in the sun). You can also place catnip on the scratching post or cat tree to make your cat even more interested in the new object.

2. You can utilize double sided tape on the ends of the furniture because you cat will not like the sticky feeling and will learn to not scratch in that region. Use the tape that has a lighter adhesive in order to prevent any permanent damage. Other materials, such as aluminum foil or bubble wrap can also be placed on the furniture to discourage the scratching.

3. Keep nails trimmed short by either learning to do this on your own at home or using a veterinary technician, or groomer. Nails can usually be trimmed every 6-8 weeks.

4. Redirect the unwanted behavior. If your cat begins scratching, use a favorite or new toy to distract the cat from the scratching. Give your cat positive praise for not scratching.

5. As a last resort you can use a spray bottle full of water to spritz your cat when he or she is scratching inappropriately at your furniture. Generally, cats do not like water and this will discourage them from continuing the behavior.

Have patience with your cat because it can takes time to understand this is an unwanted behavior and that furniture is not another toy for them to use. You can always consult your veterinary or veterinary behaviorist to help with ideas or further solutions to this problem.

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Q. My cat will not eat the renal food my veterinarian recommended, can I feed a grocery store food?
ANSWER : A. Your veterinarian recommended a therapeutic kidney diet because it has ingredients that will help slow the progression of your cat’s conditions, especially phosphorus and lower protein levels. Many of the non-prescription or grocery store foods generally have high levels of phosphorus and would not be ideal for your cat.

To help your cat accept the new food It is important to do a transition. There are two reasons to do a transition:

1) Occasionally a pet will have a GI upset when switched to a new diet,

2) A pet will accept a new food better when a transition is done to allow the pet to get use to the new texture and flavor.

There is more of a chance with a hydrolyzed protein or different (high or low) fiber level food to cause a GI upset. Transition recommendation:

1) Recommend ¾ old diet – ¼ new diet

2) Do this for a few days; if no GI upset, go to the next step

3) ½ old diet – ½ new diet

4) Do this for a few days; if no GI upset, go to the next step

5) ¼ old diet – ¾ new diet

6) Do this for a few days; if no GI upset, go to the next step

7) End with 100% of the new food.

Sometimes a transition should be longer, especially for cats. Use the same recommendation, but instead of a few days, recommend doing each step for a week or more. If you cat is still not interested in the new diet you can research other non-prescription diets focusing on the labels for appropriate levels of phosphorus and protein.

Also, home cooking may be an option but make sure to provide adequate nutrients. A good website to consult is balanceit.com. This website helps you to create well balanced home cooked recipes and offers supplements to add into the diet.

Q. How should I interpret my cat’s tail movements?
ANSWER : A. Our feline friends express themselves in many different ways, including through the use of their tails. Most pet owners pay close attention to a happy or excited dog, but they are sometimes less attentive to the posture and movement of their cat. Here are some of the most common cat tail behaviors, and the underlying emotion behind each action:

A flicking tail: Many anxious, nervous or stressed cats will hold their tail in a low position and flick it quickly back and forth. This is often referred to as angry tail, and a pet owner or veterinarian should be on guard for any possible aggressive or defensive activity. If a cat is moving their tail slowly, and not exhibiting the flicking motion, then this cat is at a much calmer state.

Vertical position: Most of the time when a cat is holding their tail in a straight, vertical position this is indicating curiosity and a playful mood. A cat chasing after a laser pointer or playing toys will often have their tails in a vertical position showing their enjoyment. This position also helps with balanced movements. In contrast, if the tail is in the vertical position and the cat’s back is arched with pinned back ears then this could demonstrate a feeling of being threatened and thus result in defensive or aggressive behaviors.

The Tucked Tail: Similar to a dog, a tucked tail often indicates submission or fear. Your cat is conveying upset feelings and should most likely be left alone. This tucked tail appearance can also make a cat look smaller and less threatening to an aggressive cat.

The Tail Twine: Cats will often hook their tail around another cat’s tail, owner’s legs or other objects to show a friendly and affectionate nature. They are also trying to indicate whether they want to receive affection from their owners, be fed or have playtime.

The next time you are home with your feline companion take note on how they express themselves through their tail movements, their ears, body posture and vocalization. You can start to better understand their needs and wants, in addition to what makes them uncomfortable or happy. Cats will surprise you with their array of emotions and varied expressions they can express.

Q. Would a male cat be affectionate to another male cat or would a female be more affectionate
ANSWER : A. The sex of the cats is less important than the personality of each cat. If the cat you have at home is already a strong-willed cat, another cat like that will lead to a lot of confrontations as they both try to be in charge and an older cat shouldn’t be matched with a rambunctious younger cat. If you keep in mind what your cat’s basic nature is, you’ll find a good match. I’ve always had multiple cats and rarely have a problem integrating a newcomer.

Q. My cat of 15 years male was diagnose with hyperthyroidism started coughing tonight for about 10 minutes an then stopped.
ANSWER : A. If your cat is vomiting there could be several underlying causes. I guess the first thing I would want to check is the thyroid level, since I have definitely seen cats that were at one point “controlled” on a specific dose of medication no longer be controlled, and the dosage has to be adjusted. This is why we always recommend rechecking thyroid levels yearly, even in hyperthyroid cats that are clinically doing well.

If the thyroid levels have recently been checked and are stable, then I’d start looking for other causes, such as GI disease. Other possibilities include kidney disease, which can definitely cause vomiting and typically goes along with hyperthyroidism (as well as just being a geriatric cat). Always a good idea to check liver values as well, as liver disease is a common problem in older cats too.

So since your cat is hyperthyroid the first step to diagnosing causes of vomiting is running full blood work – complete blood count, chemistry panel, and urinalysis – to look for some of the things I mentioned above. If nothing turns up, imaging with x-rays or ultrasound or both will likely provide a lot more information. Good luck.