How should patients with spinal injury or recovering from spinal surgery be turned in bed?

Via log roll. Usually by turning the body as if it was one straight object like a log, hence the term, log roll. The upper body should not turn without the legs moving at the same rate.

Related Questions

How do patients with spinal injury or recovering from spinal surgery turn in bed?

Care takers. Care takers log roll them frequently to avoid bed sores from pressure on insensate areas.
Using assistance. If they are unable to turn due to loss of spinal cord function, then it is best to have an air mattress to avoid pressure sores. Otherwise they can use assistance of an aid, nurse or family member or their arm strength if the injury level is below the neck. If the mobility is restricted due to pain, then pain control is important.

Is heparin ever to be given after spinal surgery if so for what reasons? How could it harm the patient?

Possibly. Heparin can usually be given after most spine surgeries, but this depends on the surgery and the surgeon. I usually start blood thinners on my patients 48 hours after surgery if they are still in the hospital. Exceptions are for cases in which I actually expose the spinal cord and/or nerves, in which case I wait longer or until any drains are out.
Heparin. Heparin is giving most commonly after a spinal surgery to prevent deep vein thrombosis and possible blood clots to the lung. This medication is given based on the risk of the patient having these blood clots. The risk to the patient is increased bleeding and that is balanced against the risk of a potential blood clot to the lungs.

How often do patients go into septic shock. From spinal surgery? And do you tell the patients family when this happens?

Not much and always. It is rare to get sepsis post surgery on the spine more likely to get meningitis but still rare. It is always unethical to withhold info from patients and family.
Unusual. It is unusual for a patient to have septic shock from spinal surgery, although it is one of the known complications. This is more likely to occur if there was concurrent multi-trauma or other metabolic issues such as diabetes mellitus. Family should be informed about problems and complications.

If knows patient have spinal injury in out of hospital how we can give cpr? Required any poteaction

Yes. C-spine immobilization and long board. If a patient needs cpr, they won't be alive to worry about their spinal injury if you don't attempt to resuscitate them. The key is to minimize further damage to their spine by immobilization. If you are an emt you should know this backward and forward. If you are a lay person, just know that you want to keep their spine immobile, especially cervical.