Hypercalcemia can result when too much calcium enters the extracellular fluid or when there is insufficient calcium excretion from the kidneys. Approximately 90% of cases of hypercalcemia are caused by malignancy or hyperparathyroidism.
There are many causes of a productive cough, such as: 1  Viral illnesses. 2  It is normal to have a productive cough when you have a common cold. 3  Coughing is often triggered by mucus that drains down the back of the throat. 4  Infections. 5  An infection of the lungs or upper airway passages can cause a cough.here are many causes of a nonproductive cough, such as: 1  Viral illnesses. 2  Bronchospasm. 3  Allergies. 4  Medicines called ACE inhibitors that are used to control high blood pressure. 5  Exposure to dust, fumes, and chemicals in the work environment. 6  Asthma. 7  Blockage of the airway by an inhaled object, such as food or a pill.
Those that are prone to panic attacks may also be at risk for severe anxiety during times of hyperventilation. This causes people to hyperventilate more, which can cause temporary but painful stress on the lungs and eventually more coughing.Coughing, hyperventilation, and anxiety all contribute to each other in a way that is difficult to stop without help.hy Anxiety Causes Coughing. Medically, there are very few reasons for anxiety to cause coughing fits. For safety, it's always a good idea to check with a doctor about your cough just in case. But one of the key reasons anxiety causes coughing is through hyperventilation.