On several occasions, this court has recognized the right to recover damages in medical malpractice cases for the loss of a chance of survival. Hastings v. Baton Rouge Gen. *545Hosp., 498 So.2d 713 (La.1986); Smith v. State Through Dept. of Health & Human Resources Admin., 523 So.2d 815 (La.1988) and Martin v. East Jefferson Gen. Hosp., 582 So.2d 1272 (La.1991). In Ambrose v. New Orleans Police Dept. Ambulance Serv., 93-3099, 93-3110, 93-3112, p. 4 (La. 7/5/94), 639 So.2d 216, 219 n. 4, we noted that this court has not yet addressed the method of valuation of the damages recoverable for the loss of a chance of survival. We granted certiora-ri in the instant medical malpractice case to address that issue.
J2I
In August 1987, Benjamin Smith went to E.A. Conway Memorial Hospital, complaining of a sore on top of his right foot. The attending physician diagnosed cellulitis with lymphangitis, and Smith underwent minor surgery to drain the fluid from his foot.
Smith’s five-day hospitalization included a routine chest x-ray which the staff radiologist reported as showing “a mediastinal mass projected to the right of the trachea.” The doctor stated that “lymphoma must be considered in the differential diagnosis” and recommended a CT scan of the thoracic area. The hospital staff failed to inform Smith or his family of the x-ray results or to recommend further testing. Smith was simply discharged from the hospital without any information about the mass in his chest.
Almost fifteen months later, Smith returned to E.A. Conway, complaining of a three-week history of “left pleuritic chest pain, fever, and chills.” A second chest x-ray on October 31, 1988, compared with the August 1987 x-ray, revealed that the mass had doubled in size. Smith and his family then learned for the first time of the August 1987 x-ray report.
Further testing confirmed the diagnosis of small cell carcinoma of the lungs, a fast-acting and lethal cancer. By this time, Smith’s cancer had progressed to the “extensive” stage, in that the cancer was present in both lungs and was non-operable.1 Despite aggressive drug treatment and chemotherapy, Smith died on March 16, 1989, nineteen months after the initial x-ray. He was forty-five years old at his death.
Smith’s wife and their two minor children petitioned for a medical review Rpanel. The Louisiana Department of Health and Hospitals, which operated E.A. Conway Hospital, stipulated to its breach of the standard of care and waived the panel. In the stipulation, the Department “admitted] that its employees and/or physicians for whom it is responsible pursuant to La.Rev.Stat. 40:1299.39 were at fault and breached the standard of reasonable care in failing to render follow-up testing and/or treatment in connection with the x-ray of August 14,1987.” However, the Department expressly reserved the right to contest causation and damages. This action followed, seeking both survival and wrongful death damages.2
The Department answered, reiterating its stipulation that its employees and physicians had breached the standard of care for medical treatment under the circumstances, but contesting whether the delay in treatment had caused any damages. Alternatively, the Department asserted that if the delay in treatment caused any diminution in Smith’s reasonable life expectancy, then only a reduced amount of the normal survival and wrongful death damages should be awarded.
At trial, the parties presented evidence by several doctors relating to the percentage chance of survival for certain periods of time after discovery of small cell carcinoma of the lung at various stages of progression of the disease. The trial court ruled that plaintiffs had not met their burden of proving that the fifteen-month delay in treatment resulting from the State’s admitted negligence had caused Smith to die or to lose a chance of survival. The judge noted that Smith actually “lived his expected life span” after the *5461987 x-ray, referring to the estimated length of time Smith would have been expected to survive, according to statistical averages, if he had received treatment immediately after the x-ray. Accordingly, the judge Udismissed plaintiffs’ action.
The court of appeal reversed, concluding that the trial court was plainly wrong in failing to find the loss of a chance of survival. 26,280 (La.App. 2d Cir. 12/9/94), 647 So.2d 653. Although Smith arguably lived without treatment as long as the average life span of a patient who underwent treatment, the court stated that every expert testified Smith had lost some chance of surviving the disease because of the Department’s negligence. Supported by excellent analytical reasoning, the court held that plaintiffs were entitled to recover damages for Smith’s loss of a chance of survival.
As to the method of measuring those damages, the intermediate court rejected plaintiffs’ contention that they were entitled to full damages for the death, noting that plaintiffs failed to prove, more probably than not, that Smith would have survived but for the Department’s malpractice. Drawing heavily on Joseph H. King, Jr., Causation, Valuation and Chance in Personal Injury Torts Involving Preexisting Conditions and Future Consequences, 90 Yale L.J. 1353 (1981), the court reasoned that granting recovery upon lesser proof than the more-probable-than-not rule should be balanced by a concomitant reduction of the potential damages for a case where the tort victim’s death probably would not have occurred but for the defendant’s fault. However, the court pointed out that the plaintiff in a loss of a chance of survival case still retains the burden of proving by a preponderance of the evidence that the defendant’s negligence caused the loss of a chance.
Accordingly, the court held that “the percentage probability of loss, if less than 50%, is the proper measure of the plaintiffs damages in a case of wrongful death due to medical malpractice.” 26,280, p. 11, 647 So.2d at 662. Referring to expert evidence that recurrence of cancer after five years is rare, the court then Igreviewed other expert testimony as to the chance of survival for five years. Four doctors testified that the chance of survival, at the stage of the disease when the initial x-ray was taken, was one to twelve percent, ten to fifteen percent, five percent, and seven to twenty-five percent respectively.3 The experts further agreed that Smith’s chance of survival at the time of the October 1988 x-ray was less than one percent. Analyzing this evidence de novo, the court concluded that the evidence preponderated to show that the Department’s negligence was a substantial factor in depriving Smith of a ten percent chance of surviving for five years. Fixing the total damages at $764,347,4 the court reduced this amount proportionate to the lost ten percent chance of survival and awarded a total of $76,434 to Mrs. Smith and her two minor children.
On plaintiffs’ application, we granted cer-tiorari, primarily to address the method of measuring the damages caused by the deprivation of a chance of survival of less than fifty percent. 95-0038 (La. 3/10/95); 650 So.2d 1167.
II
The court of appeal was correct in holding that plaintiff proved by a preponderance of the evidence that the negligence of the Department’s physicians and employees deprived Smith of a chance of survival, a loss for which the Department must respond in damages. Hastings v. Baton Rouge Gen. Hosp., 498 So.2d 713 (La.1986). The court of appeal was also correct in holding that the leplaintiffs were not required to prove a “reasonable” or “substantial” chance of survival. The issues in loss of a chance of survival cases are whether the tort victim lost any chance of survival because of the defendant’s *547negligence5 and the value of that loss. The question of degree may be pertinent to the issue of whether the defendant’s negligence caused or contributed to the loss, but such a tort-caused loss in any degree is compensa-ble in damages.6
Allowing recovery for the loss of a chance of survival is not, as the court of appeal suggested, a change or a relaxation of the usual burden of proof by a preponderance of the evidence. Rather, allowing such recovery is a recognition of the loss of a chance of survival as a distinct compensable injury caused by the defendant’s negligence, to be distinguished from the loss of life in wrongful death cases, and there is no variance from the usual burden in proving that distinct loss.
Thus, in a medical malpractice case7 seeking damages for the loss of a less-than-even chance of survival because of negligent treatment of a pre-existing condition, the plaintiff must prove by a preponderance of the evidence that the tort victim had a chance of survival at the time of the professional negligence and that the tortfeasor’s action or inaction deprived the victim of all or part of that chance, and must further prove the value of the lost chance, which is the only item of damages at issue in such a case.
17All experts testified that Smith had some chance of survival if he had been treated immediately after the August 1987 x-ray, and that he had virtually no chance of survival in October 1988 after he went almost fifteen months without treatment because of the Department’s negligence. Smith’s chance of survival in August 1987, though not better than even, was still a chance that was denied him as a result of the Department’s failure to meet its standard of care. That chance had some value when viewed from the standpoint of the tort victim and his heirs, and that value is the appropriate focus of the analysis in this case.
Ill
Courts and commentators have recognized three possible methods of valuation of the loss of a chance of survival in professional malpractice cases.8
The first, and the method we adopt today in this decision, is for the factfinder— judge or jury—to focus on the chance of survival lost on account of malpractice as a distinct compensable injury and to value the lost chance as a lump sum award based on all the evidence in the record, as is done for any other item of general damages.
The second method, as advocated by plaintiffs, is to allow full survival and wrongful death damages for the loss of life partially caused by malpractice, without regard to the chance of survival. We reject this argument, agreeing with the court of appeal that full recovery is not available for deprivation of a chance of survival of less than fifty percent. To allow full recovery would ignore the claimants’ | ginability to prove by a preponderance of the evidence that the malpractice victim would have survived but for the malpractice, which is a requirement for full recovery.
*548The third method, and the method adopted by the court of appeal in this case, is to compute the compensable chance as “the percentage probability by which the defendant’s tortious conduct diminished the likelihood of achieving some more favorable outcome.” Joseph H. King, Jr., Causation, Valuation and Chance in Personal Injury Torts Involving Preexisting Conditions and Future Consequences, 90 Yale L.J. 1353, 1382 (1981). Professor King’s percentage-probability-of-loss theory estimates “the compensable value of the victim’s life if he survived” and reduced that estimate according to the percentage chance of survival at the time of the malpractice. Id. This method has gained acceptance by the courts and commentators because of its pragmatic appeal, providing concrete guidelines for calculating damages and alleviating the perceived “pulling out of the hat problem” allegedly associated with the method that we adopt today. See Borgren v. United States, 723 F.Supp. 581, 582-83 (D.Kan.1989).
Our point of disagreement with the court of appeal’s method of computing damages for the loss of a chance of survival is its rigid use of a precise mathematical formula, based on imprecise percentage chance estimates applied to estimates of general damages that never occurred, to arrive at a figure for an item of general damages that this court has long recognized cannot be calculated with mathematical precision. See Boutte v. Hargrove, 290 So.2d 319, 322 (La.1974); Walton v. William Wolf Baking Co., 406 So.2d 168, 175 (La.1981). When these total hypothetical damages are reduced by a numerical factor determined from evidence of percentage rates of survival for certain periods after discovery of the disease at various stages of the disease, the uncertainty progresses geometrically.
|;/rhe starting point of our analysis is to recognize that the loss of a less-than-even chance of survival is a distinct injury com-pensable as general damages which cannot be calculated with mathematical certainty. Next, we recognize that the factfinder should make a subjective determination of the value of that loss, fixing the amount of money that would adequately compensate the claimants for that particular cognizable loss. On the other hand, the approach of the court of appeal requires the factfinder first to make a hypothetical determination of the value of survival and wrongful death claims that are not really at issue and then to discount that value mathematically. This mathematical discounting of the subjective valuation of inapplicable claims does not magically make that approach more precise or more accurate than simply allowing the factfinder to value directly the loss of a chance of survival that is the sole item of damages at issue in the case. Borgren, 723 F.Supp. at 583.
The lost chance of survival in professional malpractice cases has a value in and of itself that is different from the value of a wrongful death or survival claim.9 | ipThe *549jury can calculate the lost chance of survival without going through the illusory exercise of setting a value for the wrongful death or survival claims and then mechanically reducing that amount by some consensus of the expert estimates of the percentage chance of survival. The methodology for fixing damages attributable to the loss of a chance of survival should not be so mechanistic as to require the jury merely to fill in the blanks on a verdict sheet with a consensus number for the percentage chance of survival and the total amount of damages, and then have the judge perform the multiplication task.
The calculation of damages for the loss of a chance of survival is not like the calculation of comparative fault damages. In the comparative fault context, the jury determines the entire amount of general and special damages actually sustained by the tort victim, which is an amount that would be awarded in the absence of contributory negligence. The percentage reduction merely implements the law of comparative fault in fixing the tortfeasor’s total obligation. But in the loss of a chance of survival context, the award of damages for this particular loss is the “bottom line” figure. Any theoretical figure representing the amount the claimants would have been awarded if they had been successful in proving the defendant’s fault more probably than not caused the loss of the tort victim’s life is not a concrete figure that can properly be subjected to a reduction because of plaintiffs’ failure of proof. Rather, the jury in a loss of a chance of survival case merely | nconsiders the same evidence considered by a jury in a survival and wrongful death action, and the loss-of-chance jury then reaches its general damages award for that loss on that evidence as well as other relevant evidence in the record.10
This approach for valuation of the loss of a chance of survival is more appropriate than the method used by the court of appeal in that it allows the jury to render a verdict in the lump sum amount of damages attributable only to the lost chance of survival. This is a valuation of the only damages at issue— the lost chance — which is based on all of the relevant evidence in the record, as is done for any other measurement of general damages. Allowing the jury to consider all the evidence, including expert medical testimony regarding the percentage chances of survival, and to value directly the lost chance is more logical than requiring the jury to calculate damages for wrongful death when the physician’s negligence was not the more probable cause of the death.
The method we adopt today will not leave the jury without any guidance or any factors to consider. The jury will be allowed to consider an abundance of evidence and factors, including evidence of percentages of chance of survival along with evidence such as loss of support and loss of love and affection, and any other evidence bearing on the value of the lost chance. The jury’s verdict of a lump sum amount of damages can be tested on appeal for support in the record by reviewing the percentage chances and the losses incurred by the tort victim and his or her heirs, and any other relevant evidence, thus providing assurance against speculative verdicts.
| i2Because the plaintiffs in the present case have not been afforded in either lower court the benefit of the method of valuation of damages adopted in this opinion, we remand *550the ease to the trial court to render a decision in accordance with this method of valuation, on the basis of the present record and of any additional evidence that the trial court in its discretion may allow. Moreover, we instruct the trial court to consider and rule on the claim for the shock and emotional distress that the tort victim actually suffered, irrespective of the percentage chance of survival, upon learning that the Department’s health care providers failed to inform him of his beginning stage of cancer at a time when something possibly could have been done to avoid the consequences.
For these reasons, the judgment of the court of appeal is set aside, and the case is remanded to the district court for further proceedings in accordance with this opinion.
MARCUS and VICTORY, JJ., dissent and assign reasons.