
788 P.2d 428 (1990)
309 Or. 350
James Pierce WHINSTON, Respondent/Cross-Petitioner On Review,
v.
KAISER FOUNDATION HOSPITAL, a California Corporation; Northwest Permanente, P.C., an Oregon Corporation, and the Permanente Clinic, a Partnership, Petitioners/Cross-Respondents On Review.
TC A8212-07341; CA A41750; SC S35756, S36014.
Supreme Court of Oregon.
Argued and Submitted May 4, 1989.
Decided March 6, 1990.
Reconsideration Denied May 3, 1990.
*429 John R. Faust, Jr., Portland, argued the cause for petitioners/cross-respondents on review. With him on the petition and response to cross-petition was Schwabe, Williamson & Wyatt, Portland.
John Paul Graff, Portland, argued the cause for respondent/cross-petitioner on review. With him on the cross-petition and responses to petition was Graff & O'Neil, Portland.
Before PETERSON, C.J., and LINDE,[*] CARSON, JONES, GILLETTE and FADELEY, JJ.
CARSON, Justice.
In this medical malpractice case, defendants are two corporations and a partnership engaged in providing health care. Plaintiff was a patient of defendants' agents: Dr. Porter, a gastroenterologist;[1] Dr. Gregory, a psychiatrist; and Dr. Levine, a psychologist. Plaintiff claimed that these agents negligently treated his liver ailment.
At the close of plaintiff's case, the trial court directed verdicts for defendants on claims involving Dr. Gregory and Dr. Levine. Claims involving Dr. Porter, the gastroenterologist, were submitted to the jury. By general verdict, the jury awarded plaintiff $3,183,845 in damages. The trial court entered judgment for plaintiff. Later, upon defendants' motion for judgment notwithstanding the verdict and alternative motion for new trial, the trial court granted defendants a judgment notwithstanding the verdict for lack of evidence that Dr. Porter's conduct fell below the standard of care for gastroenterologists.
The Court of Appeals reversed and instructed the trial court to enter judgment on the verdict.[2]Whinston v. Kaiser Foundation Hospital, 93 Or. App. 528, 763 P.2d 177 (1988). We review: (1) The effect of remarks made during oral argument in the Court of Appeals; (2) defendants' challenge to the pleading sufficiency of an allegation of negligence; (3) whether there was evidence to support the verdict; and (4) the effect of jury consideration of an allegation unsupported by the evidence. We reverse the judgment of the trial court and, in part, the decision of the Court of Appeals, and remand this case to the trial court for a new trial.

I. REMARKS DURING ORAL ARGUMENT IN THE COURT OF APPEALS
Three allegations of negligence were submitted to the jury involving Dr. Porter: (1) Failure to perform or to obtain a liver biopsy; (2) failure to diagnose plaintiff's cirrhosis; and (3) failure to diagnose plaintiff's vitamin A toxicity. After a verdict was returned in plaintiff's favor, the trial court determined that there was *430 no evidence that Dr. Porter's conduct fell below the standard of care on any allegation and entered judgment notwithstanding the verdict. Plaintiff assigned the ruling as error. The Court of Appeals found evidence to support the single allegation that Dr. Porter negligently failed to diagnose plaintiff's cirrhosis.
According to defendants, the Court of Appeals should not have considered whether evidence supported this particular allegation because plaintiff "conceded" during oral argument in the Court of Appeals that there was only one issue in this case, based on a different allegation, viz.: whether Dr. Porter negligently failed to perform or to obtain a liver biopsy. If defendants are correct, the Court of Appeals erred when it reinstated the verdict because plaintiff withdrew from appellate review the one allegation for which that court found supporting evidence: the allegation that Dr. Porter negligently failed to diagnose plaintiff's cirrhosis. The effect of defendants' argument is that the failure by the Court of Appeals to accept the concession is an error of law.
Defendants rely on the following remarks made by plaintiff's counsel during oral argument in the Court of Appeals:
"The case was submitted to the jury on three specifications of negligence. * * * As the defendants point out, correctly, the latter two allegations, the failure to diagnose allegations, are really allegations of the results. The failure was to do a liver biopsy. * * * So we're really talking here about a single issue: Was there sufficient evidence that a liver biopsy should have been done, that a liver biopsy was required by the standard of care, to submit the case to the jury on all three allegations of negligence."
On their face, these remarks mean what defendants say they mean: Plaintiff's counsel conceded that the sole issue was whether the evidence supported the allegation that Dr. Porter negligently failed to perform or to obtain a liver biopsy.
Plaintiff's counsel, however, did not explicitly withdraw or abandon plaintiff's assignment of error  during oral argument or otherwise.[3] As previously stated, plaintiff assigned error to the trial court's ruling, on all three allegations, that there was no evidence that Dr. Porter's conduct fell below the standard of care. Remarks by plaintiff's counsel during oral argument in the Court of Appeals characterized the record, but the Court of Appeals (and this court) properly look beyond that characterization  at least absent an explicit withdrawal of the assignment of error, and perhaps even then  to determine whether the record supports the relief requested in the assignment of error. See Shop. Centers v. Stand. Growth Prop., 265 Or. 405, 498 P.2d 781, 509 P.2d 1189 (1973) (court disregarded a concession after it examined the record and concluded that the evidence was inconsistent with the concession). Absent an explicit withdrawal of an assignment of error,[4] we do not construe remarks at oral argument as defeating a request for relief when the record supports the relief requested in the assignment of error.
We turn to defendants' challenge to the sufficiency of the allegation that Dr. Porter negligently failed to diagnose plaintiff's cirrhosis.

II. THE SUFFICIENCY OF PLAINTIFF'S NEGLIGENCE ALLEGATION
In his fourth amended complaint, plaintiff alleged that Dr. Porter
"* * * was negligent in the treatment of Plaintiff from December 1, 1977 *431 through and including December 1, 1982, in one or more of the [following] particulars:
* * * * * *
"5. In failing to diagnose Plaintiff's cirrhosis of the liver."
Defendants argue that this pleading is deficient. According to defendants, a "mere failure to diagnose is not negligence. * * * [T]he failure to diagnose is only a bad result that is actionable only where it is caused by some departure from standards of due care." Defendants argue that plaintiff should have alleged how Dr. Porter was negligent, i.e., that Dr. Porter failed to perform a "work-up" conforming to the standard of care. They argue that plaintiff recognized the deficiency in his pleading when, during trial, he moved to amend to plead a "defective work-up." The motion was denied. According to defendants, the Court of Appeals erred when it reversed the trial court "on evidence of facts (a defective `work-up') that plaintiff did not plead and recognized that he had to plead."
Even if we assume that defendants are correct in their assertion that plaintiff's pleading is deficient, such assertion will not aid defendants here. The flaw in defendants' argument is that it runs afoul of ORCP 23 B.[5] Under that rule, a party may amend a pleading to conform to the evidence, thus raising an issue not raised by the pleading. A party may also amend to raise an issue "tried by express or implied consent of the parties." Moreover, ORCP 23 B provides that failure to amend "does not affect the result of the trial." Thus, a pleading for all practical and legal purposes is automatically[6] amended whenever an issue not raised by the pleading is tried by consent.[7]
Here, plaintiff introduced testimony that Dr. Porter negligently failed to perform a "work-up." Dr. Falkenstein, a gastroenterologist, testified that: (1) He was familiar with the standard of care of a "reasonably careful practicing gastroenterology specialist"; (2) Dr. Porter's conduct fell below "the accepted standard of practice and care" in several respects, such as the "failure to initiate an orderly evaluation of potential digestive disease including but not limited to, liver disease"; (3) diagnostic tests "would have led to the uncovery [sic] of a liver disease"; (4) the failure to begin testing caused a delay in diagnosing the cirrhosis; and (5) without the delay, the liver disease could have been "halted [or] reversed." Defendants did not object to this testimony.
By not objecting to Dr. Falkenstein's testimony, defendants, in the circumstances of this case, effectively consented to the trial of the allegation that Dr. Porter negligently failed to perform a work-up relating to the diagnosis of plaintiff's cirrhosis. As the Court of Appeals found, Dr. Falkenstein's testimony was some evidence to support the allegation. Accordingly, we turn to whether the evidence supported the verdict.

III. WHETHER THE EVIDENCE SUPPORTED THE VERDICT
The Court of Appeals found evidence in the record to support the allegation *432 that Dr. Porter negligently failed to diagnose plaintiff's cirrhosis, one of three allegations submitted to the jury. That court determined that Dr. Falkenstein's testimony was some evidence that Dr. Porter's conduct fell below the standard of care.[8]Whinston v. Kaiser Foundation Hospital, supra, 93 Or. App. at 532, 763 P.2d 177. We agree. The granting of the judgment notwithstanding the verdict was error.
Having so found, the Court of Appeals reversed the trial court and remanded with instructions to enter judgment for plaintiff on the verdict. In reaching this disposition, the Court of Appeals, noting that a general verdict was returned by the jury, concluded that because there was evidence to support one of the three allegations (but not the other two), there was sufficient evidence to support the verdict. In this conclusion, the Court of Appeals erred.
This case involves the relatively common circumstance where multiple allegations of negligence are submitted to the jury, some without supporting evidence but some with supporting evidence, and a general verdict form is used. In this situation, it usually is impossible to determine whether the jury returned a verdict on an allegation supported by the evidence or one unsupported by the evidence. In this case, we cannot determine whether the jury returned its verdict based upon the first or third allegations at issue herein (which are unsupported by the evidence) or the second allegation (which is supported by the evidence).
In such cases, where (1) more than one allegation of negligence is submitted to the jury; (2) one or more of, but not all, the allegations are unsupported by the evidence; and (3) it cannot be determined upon which allegation the jury based its verdict, this court has held that a new trial must be granted. That is, the court has followed a "we can't tell" rule. In Pavlik v. Albertson's, Inc., 253 Or. 370, 454 P.2d 852 (1969), for example, one of two allegations of negligence submitted to the jury was unsupported by the evidence. A general verdict was returned for plaintiff. This court reversed and remanded for a new trial because the jury might have based its general verdict upon the unsupported allegation. See also Martin Engineering v. Opton, 277 Or. 291, 560 P.2d 617 (1977); Alvarez v. Great North. Railway Co., 261 Or. 66, 491 P.2d 190 (1971); Layne v. Portland Traction Co., 212 Or. 658, 319 P.2d 884 (1957), reh. den. 212 Or. 658, 321 P.2d 312 (1958).
Plaintiff argues that the Court of Appeals properly reinstated the verdict in this case because one of his allegations of negligence was supported by the evidence. In so arguing, plaintiff relies on Shelton v. Lowell et al., 196 Or. 430, 249 P.2d 958 (1952), and Finn et al. v. S.P. & S. Ry. Co., 194 Or. 288, 241 P.2d 876 (1952). There is language in both cases that suggests that this court follows the "two-issue" rule. That is, a general verdict should stand when two or more allegations are submitted to the jury and at least one is supported by the evidence. See Colonial Stores, Inc. v. Scarbrough, 355 So.2d 1181, 1185-86 (Fla. 1978).
In both Shelton and Finn, this court specifically found error in the trial courts' refusal to remove from the jury an allegation of negligence. Shelton v. Lowell et al., supra, 196 Or. at 446, 249 P.2d 958; Finn et al. v. S.P. & S. Ry. Co., supra, 194 Or. at 299, 241 P.2d 876. In each case, this court nonetheless upheld the general verdict by invoking Article VII (Amended), section 3, of the Oregon Constitution.[9] As stated by Justice Lusk in his dissent in Shelton:

*433 "* * * I do not suggest at this time a re-examination of the doctrine of Hoag v. Washington-Oregon Corp., 75 Or 588, 144 P 574, 147 P 756, and the cases which follow it, that this court is authorized under Art VII, § 3 of the constitution, in certain circumstances to re-examine the evidence in a law action that has been tried by a jury and to enter judgment based upon such re-examination. But the power so asserted, if it is to stand, should be exercised only with utmost caution and in rare instances. * * *" 196 Or. at 451, 249 P.2d 958.
We decline to exercise that extraordinary power in this case.
The Court of Appeals, in reaching its decision to reinstate the verdict in this case, relied, in part, on this court's decision in Byers v. Santiam Ford, Inc., 281 Or. 411, 574 P.2d 1122 (1978) and a citation in that case to Berger v. Southern Pac. Co., 144 Cal. App.2d 1, 300 P.2d 170 (1956). In Byers, a buyer of an automobile brought an action against the seller to recover damages on two counts, one for fraud and one for violations of the Unfair Trade Practices Act (UTPA). The special verdict form submitted to the jury segregated the two counts. The jury answered "yes" to both questions asking if the defendant's conduct constituted fraud or violations of UTPA. The defendant contended that the court's instruction on the first count constituted reversible error. This court ruled that even if the first count were submitted on erroneous instructions, count two was not so flawed and affirmed the judgment. Byers is an example of the counterpart to the "we can't tell" rule: There, because of the special verdict form, this court could determine that the jury based its verdict on a valid count. In the Byers case, the reviewing court could tell.
This court's citation in Byers to Berger v. Southern Pac. Co., supra, and its precedent, Leoni v. Delany, 83 Cal. App.2d 303, 188 P.2d 765, 189 P.2d 517 (1948), was preceded by the introductory signal "See," suggesting that the proposition relied upon is not stated in the cited authority but follows from it. Harvard Law Review Association, A Uniform System of Citation 8 (14th ed 1986). The Court of Appeals, in its decision in this case, interpreted that reference as reliance on Berger, correctly quoting Berger for espousing the two-issue rule: If one count is supported and one count is unsupported, the verdict stands. It is questionable whether the opinion in Byers follows from the opinion in Berger. Nevertheless, the decision in Byers was correct, for the reasons previously stated.
Neither Byers, nor the Court of Appeals' opinion in this case, mentions the contrary rule announced over three decades ago by this court and most recently followed in Pavlik v. Albertson's, Inc., supra, 253 Or. at 375, 454 P.2d 852, discussed above. If the court cannot determine whether the verdict was based on an allegation supported by the evidence or on one unsupported by the evidence, the result is a new trial. In light of our longstanding precedent, we decline to adopt a different rule at this time.[10]
To avail oneself of the Pavlik rule, a party must have taken some action at trial to remove the unsupported allegation from the jury's purview. The rationale for this proposition is "the general rule of appellate procedure that an appellate court will not consider a question on appeal unless it has been first presented to and ruled *434 upon by the lower court." Falk v. Amsberry, 290 Or. 839, 843, 626 P.2d 362 (1981). The preferred method to raise the issue is a "proper request for a suitable peremptory instruction to the jury on each of the elements [or allegations] on which the claimant believes it is entitled to prevail as a matter of law." NW Pac. Indem. v. Junction City Water Dist., 296 Or. 365, 372 n. 1, 677 P.2d 671 (1984). We assume that the common practice of a motion to withdraw issues from the jury's consideration (Dickson v. Hollinger, 257 Or. 89, 93, 476 P.2d 557 (1970)) has survived the enactment of the Oregon Rules of Civil Procedure as another effective means of raising the issue to the trial court.
Because a motion for directed verdict against a party's entire case is properly denied if any allegation is supported by the evidence, see Murphy v. Harty, 238 Or. 228, 247, 393 P.2d 206 (1964), such blanket motions are insufficient as a predicate to invoking the Pavlik rule upon review. Further, this court has observed that "[a] motion for a directed verdict is not the proper vehicle for asking the trial court to decide as a matter of law that the movant is entitled to prevail on less than all of the elements of a claim." NW Pac. Indem. v. Junction City Water Dist., supra, 296 Or. at 372 n. 1, 677 P.2d 671.

IV. DISPOSITION
Because there was evidence to support one allegation of negligence, the trial court erred in granting the motion for judgment notwithstanding the verdict.
We agree with the Court of Appeals and the trial court that there was no evidence to support two of the allegations of negligence that were submitted to the jury. Before the case went to the jury, defendants moved to withdraw[11] those two allegations on the ground that there was no evidence to support them. The trial court should have withdrawn them, and, therefore, erred in failing to do so.
That does not, however, end our labors. ORCP 63 C provides:
"A motion in the alternative for a new trial may be joined with a motion for judgment notwithstanding the verdict, and unless so joined shall, in the event that a motion for judgment notwithstanding the verdict is filed, be deemed waived. When both motions are filed, the motion for judgment notwithstanding the verdict shall have precedence over the motion for a new trial, and if granted the court shall, nevertheless, rule on the motion for a new trial and assign such reasons therefor as would apply had the motion for judgment notwithstanding the verdict been denied * * *."
The trial judge did not, as contemplated by ORCP 63 C, "rule on the motion for a new trial." We must, therefore, consider whether the alternative motion for a new trial should have been granted.
Had the trial court ruled on the alternative motion for a new trial, it is clear that that motion should have been granted. Pavlik v. Albertson's, Inc., supra. Consistent with ORCP 63 C, we therefore order a new trial.
The decision of the Court of Appeals is reversed in part. Order allowing defendants' motion for judgment notwithstanding the verdict and judgment based thereon regarding plaintiff's claims involving Dr. Porter, reversed and remanded to the circuit court for new trial, otherwise affirmed.
NOTES
[*]  Linde, J., retired January 31, 1990.
[1]  A gastroenterologist is "a practitioner who specializes in diseases of the digestive tract." Dorland's Illustrated Medical Dictionary 635 (25th ed 1974).
[2]  The Court of Appeals affirmed entry of a directed verdict on the claim against Dr. Gregory, the psychiatrist. Whinston v. Kaiser Foundation Hospital, 93 Or. App. 528, 532, 763 P.2d 177 (1988). We do not address that issue. ORAP 9.20(2). No issue is presented about Dr. Levine, the psychologist.
[3]  The Court of Appeals twice rejected the claim of concession, in its opinion, Whinston v. Kaiser Foundation Hospital, supra, 93 Or. App. at 532 n. 2, 763 P.2d 177, and, implicitly, in denying the petition for reconsideration.
[4]  Litigants may withdraw an assignment of error  provided they do so explicitly  in writing or during oral argument. See Kelly v. Tracy, 209 Or. 153, 170-71, 305 P.2d 411 (1956). Upon such withdrawal, the case is considered as if the assignment of error had not been made. Defendants demonstrated one way to withdraw an assignment when, by letter to the Court of Appeals, they "abandoned" their cross-appeal.
[5]  ORCP 23 B provides, in part:

"When issues not raised by the pleadings are tried by express or implied consent of the parties, they shall be treated in all respects as if they had been raised in the pleadings. Such amendment of the pleadings as may be necessary to cause them to conform to the evidence and to raise these issues may be made upon motion of any party at any time, even after judgment; but failure so to amend does not affect the result of the trial of these issues. * * *"
[6]  See Kirkpatrick, 1980 Oregon Civil Procedure Rules, Analyses of Rules 256 (Oregon Law Institute 1979).
[7]  In Richards v. Dahl, 289 Or. 747, 753, 618 P.2d 418 (1980), which was decided before the advent of ORCP 23 B, this court stated:

"[W]hen evidence has been received, that evidence, rather than the allegations of the complaint, should determine whether the party has presented a cause of action. The pleading is a summary or outline of what the party expects to prove. The proof itself, not the summary, should determine whether the party has a cause of action."
[8]  A judgment notwithstanding the verdict is to be granted only when there is no evidence to support the verdict. Hill v. Garner, 277 Or. 641, 643, 561 P.2d 1016 (1977). In determining whether the evidence supports the verdict, the evidence is reviewed in the light most favorable to the party in whose favor the verdict was returned. 277 Or. at 643, 561 P.2d 1016; see also Jacobs v. Tidewater Barge Lines, 277 Or. 809, 811, 562 P.2d 545 (1977).
[9]  Article VII (Amended), section 3, of the Oregon Constitution provides, in part:

"* * * If the supreme court shall be of opinion, after consideration of all the matters thus submitted, that the judgment of the court appealed from was such as should have been rendered in the case, such judgment shall be affirmed, notwithstanding any error committed during the trial; or if, in any respect, the judgment appealed from should be changed, and the supreme court shall be of opinion that it can determine what judgment should have been entered in the court below, it shall direct such judgment to be entered in the same manner and with like effect as decrees are now entered in equity cases on appeal to the supreme court. * * *"
[10]  In the future, a careful practitioner may wish to guard against an untoward outcome were this court to retreat from the Pavlik rule. Pavlik v. Albertson's, Inc., 253 Or. 370, 454 P.2d 852 (1969). Through the use of a special verdict, ORCP 61 B, or by the use of a general verdict accompanied by answers to interrogatories, ORCP 61 C, the trial and appellate courts would be able to determine if the jury verdict were based on an allegation supported by the evidence. See McCord v. Maguire, 873 F.2d 1271 (9th Cir 1989).
[11]  At the close of plaintiffs case, defendants initially moved for a directed verdict "on the entire case." The motion was denied. Defendants then proceeded with specific motions to strike the various allegations. At the suggestion of the trial court, defendants phrased subsequent motions as motions for directed verdict. But see NW Pac. Indem. v. Junction City Water Dist., 296 Or. 365, 372 n. 1, 677 P.2d 671 (1984). However phrased, it is clear from the record that the issues in question were presented to the trial court and ruled upon.
