Guide. A parathyroid hormone (PTH) blood test measures the level of parathyroid hormone in the blood. This test is used to help identify hyperparathyroidism, to find the cause of abnormal calcium levels, or to check the status of chronic kidney disease.
Pleva skin disorder. red spots which may develop into blisters or open sores.These will heal on their own in some weeks and recur again also, possibly. Pityriasis lichenoides is the name given to an uncommon rash of unknown cause. Its mild form is known as pityriasis lichenoides chronica (PLC).leva skin disorder. red spots which may develop into blisters or open sores.These will heal on their own in some weeks and recur again also, possibly. Pityriasis lichenoides is the name given to an uncommon rash of unknown cause. Its mild form is known as pityriasis lichenoides chronica (PLC).
PUVA is a combination of UVA light and a chemical called psoralen (P). UVA is not beneficial in treating psoriasis on its own; instead it must be combined with psoralen (a chemical derived from plants) which makes the skin more sensitive to the UVA light.