posted by admin on Mar 10
51
1 of marked variability or tachycardia before she has to
2 call the doctor?
3 A. Well, I don’t think with marked
4 variability, which doesn’t last very long anyway in
5 this case, that the nurse ever has to call the doctor.
6 The tachycardia would be at some point
7 important for the doctor to know has occurred, assuming
8 that she has noted it for a long period of time. So
9 sometime between 12:10 p.m. on the 7th and ten o’clock
10 that night I think the physician needs to know that
11 there has been an ongoing tachycardia.
12 Q. Okay. But my question was how long, in
13 your opinion, does the standard of care allow the nurse
14 to watch the monitor for tachycardia before she’s
15 required to call the doctor? I mean –
16 A. There is nothing — there is nothing
17 sacredly written down as a time interval. I think it’s
18 a judgment call. But certainly after an hour or two of
19 tachycardia, I think the nurse needs to let the
20 physician know that there is tachycardia. He may –
21 Q. Well, is the –
22 A. Excuse me. He may well know that this
23 is — that this could easily be part of the terbutaline
24 therapy too, which I really failed to mention, so let
25 me mention it now.
52
1 Terbutaline, which has been given to the
2 patient, is a — is a very significant cause of fetal
3 tachycardia. So the nurse has to understand that this
4 is either a core temperature problem of the fetus or
5 terbutaline therapy that’s being administered. And
6 while I answered earlier that more likely than not it
7 was a core temperature problem, I’d have to put the
8 terbutaline issue right up there with it as an equal
9 partner, so to speak, in causation for fetal
10 tachycardia.
11 So assuming that the nurse is convinced
12 that this heart rate is up because of the terbutaline,
13 she really doesn’t have to call the doctor.
14 You only call the doctor if you think there
15 is some change that needs to occur; that somebody needs
16 to do something — either evaluate, come in and
17 deliver, change course of — change course of direction
18 in management. And I don’t really see that here. I
19 think the average, prudent nurse would think that with
20 an afebrile mother that this is either a core
21 temperature problem or a terbutaline problem, at worst
22 it’s fetal stress, but there’s no evidence of hypoxia
23 or distress. And I’m not really sure that she needs to
24 notify the doctor that this is — this is occurring.
25 Q. Sir, I thought you told me a few answers
53
1 ago that a nurse is not allowed to make a diagnosis;
2 she just has to inform the doctor about what’s going on
3 and he makes the diagnosis.
4 A. Well, technically that’s exactly right, but
5 nurses do make diagnoses in their head. I mean,
6 they’re not — they’re professional individuals who
7 have a considerable amount of intelligence and can
8 figure these things out. I’m talking about that
9 they’re not — their job description is not to
10 diagnose. Their job description is to monitor and to
11 let physicians know of events as they occur in a manner
12 that would allow the physician to intervene
13 appropriately. But, of course, nurses diagnose, but
14 they wouldn’t put down, “Impression, abruptio placenta”
15 or, “Impression, fetal distress.” They would put down
16 “fetal heart rate bradycardia,” knowing that that’s
17 fetal distress, but they wouldn’t necessarily put that
18 down.
19 Q. Okay. So did the standard of care here
20 allow the nurse to assume that the tachycardia was due
21 to terbutaline and not call the physician?
22 A. Oh, absolutely. Or even that the
23 temperature might be slightly elevated. As long as the
24 mother’s temperature is not demonstrating a significant
25 problem, then I think it’s okay.
54
1 For example, at ten — I believe at ten –
2 one second. I want to check something.
3 What I’m looking for is there was a point
4 where the temperature went to 100.4 and the doctor –
5 Dr. D. was notified. And that was — (pause)
6 I’m looking for the time when her — when
7 the mother’s temperature went to 100.4. I just can’t
8 locate it at this point, but I have written a note to
9 myself, which you have in front of you too, from my
10 notes, that the doctor was notified about that, which
11 is an appropriate thing to do. I’ll keep looking while
12 you’re asking me other questions.
13 Q. That’s fine.
14 Sir, would you agree with me that a
15 physician would expect his nurse to call him when a
16 patient has tachycardia and inform him of that and
17 allow him to make the determination if it may be due to
18 terbutaline or an increased core temperature or
19 infection or what have you?
20 A. Yes. I think nurses need to let their
21 doctor know when there is a fetal tachycardia and let
22 the physician make that particular call.
23 Q. That’s part of the standard of care for
24 nursing; correct?
25 A. I believe that it is a standard of care for
55
1 nurses to keep doctors upgraded — or updated.
2 For example here, I’m looking at notes
3 where the nurse wrote, for example, at two o’clock in
4 the afternoon — I assume that’s the 7th — Dr. D.
5 aware that fetal heart rate is 160s to 170s.
6 So I assume that the nurses are letting the
7 doctor know. At 3:30 Dr. D. was there looking at
8 the strip. I’ve never, in reviewing this, felt that
9 the doctor was not informed as to this particular fetal
10 heart rate tracing. And the level of concern that
11 started later, in the early morning hours of the 8th,
12 the nurses are appropriately calling and updating in a
13 more frequent manner.
14 Q. Sir, what is the basis for your opinion
15 that you told me earlier that it could be even one to
16 two hours of fetal tachycardia before a nurse is
17 required to call a physician and inform him that his
18 patient has tachycardia?
19 A. Well, I’m giving you a generic time line.
20 If the physician has been in and has reviewed the
21 record and nothing much has changed, then the nurse can
22 watch the tachycardia for hours and hours, which I
23 think is happening here.
24 But I don’t think that — that was a very
25 generic term, assuming that an hour or so has gone by
56
1 of fetal tachycardia and the doctor did not know that
2 tachycardia has been ongoing, then I think the nurse
3 should be calling. But that was more of a generic and
4 not specifically related to this case.
5 Q. So in this specific case, sir, is it less
6 than an hour or two that you believe tachycardia can go
7 by before the standard requires the nurse to inform the
8 doctor of it?
9 A. Well, the only reason I’m hesitating is
10 that, you know, there is nothing written down in any
11 kind of national standard that says that after 60
12 minutes a nurse has to call the doctor with an
13 unexplained tachycardia. It could be — it could be
14 two hours. It could be thirty minutes. Everybody is a
15 little different on this. So there is really no
16 specific standard.
17 I’m telling you, from my point of view,
18 that somewhere around an hour to two of an unexplained
19 tachycardia should be brought to the doctor’s
20 attention, assuming that there isn’t some very obvious
21 reason that had already been ongoing and discussed.
22 And in this particular case, being on
23 terbutaline, which is a — which is a very common cause
24 of fetal heart rate tachycardia, I think these nurses
25 are watching this tachycardia and assuming that the
57
1 doctor understands what’s going on.
2 Q. But, of course, it existed earlier in the
3 day.
4 A. Yes. It starts at around 12:10, and we
5 know that the doctor has been in to see the patient,
6 that the nurses have communicated with the doctor. So
7 I’m assuming that nothing else has changed. And when
8 you look at the monitor strip, nothing has changed.
9 And when it does change, they do call him.
10 Q. Why, sir, if the terbutaline is causing the
11 fetal tachycardia, why isn’t it a continuous fetal
12 tachycardia from 12:10 until the delivery of this baby?
13 A. I’m not sure I understand the question.
14 Could you repeat it?
15 Q. Sure. Was not the patient receiving
16 terbutaline from 12:10 on?
17 A. Yes. Well, let’s see. Yes. At 11:30
18 terbutaline restarted, and at 4:15 it was stopped. And
19 then sub q terbutaline was given.
20 So in one form or fashion, yes, it was
21 being given. And that would explain –
22 Q. And so if terbutaline is the cause of the
23 fetal tachycardia, why isn’t it constant?
24 A. Oh, babies adapt. It’s a physiological
25 event that I don’t think anybody could really explain
58
1 to you or anybody else with satisfaction. We have
2 patients who are on terbutaline that never get fetal
3 tachycardia. And we have patients that have fetal
4 tachycardia, and then the fetal tachycardia goes away.
5 We have patients who have fetal tachycardia and never
6 get rid of their fetal tachycardia. We really don’t
7 have any reason for why babies change their baseline
8 despite being on terbutaline. It may be an adaptive –
9 it may be an adaptive thing that the heart rate adapts
10 to this or the receptor sites are all filled and you
11 get an early tachyphylaxis or downgrading of receptor
12 sites. But that’s a very physiological answer to a
13 clinical situation that doesn’t really portend an
14 ominous outcome or change in therapy.
15 Q. If the reason was the tachycardia went away
16 is because the fetus adapted to the terbutaline, why
17 did the tachycardia recur in this fetus who adapted?
18 A. Well, you’re asking some very interesting
19 questions, and I suggest you join us in research,
20 because we just don’t know. I mean, I wish I knew, but
21 I don’t.
22 Q. Why, sir, when I asked you at the earlier
23 onset of the deposition, with a reasonable degree of
24 medical probability, as to the cause of the
25 tachycardia, you mentioned the core temperature
59
1 increase in the fetus but left off terbutaline on that
2 list?
3 A. That was a — an error on my part. It just
4 somehow didn’t enter my brain until all of a sudden I
5 realized that that was an important parameter. And I
6 just failed to mention it and wanted to correct that
7 for this deposition. It was an error on my part.
8 Q. Did you know, sir, at the beginning of this
9 deposition that this mom was on terbutaline?
10 A. Of course. Take a look at my notes. I’ve
11 got it written all over my notes. I just — in
12 speaking and trying to answer — looking at a phone,
13 for some reason or another that bit of information just
14 didn’t reach the right cells in my brain. And I
15 quickly corrected it as soon as I realized that I had
16 left it out.
17 Q. Okay. Prospectively could the nurse
18 determine whether the fetal tachycardia was due to
19 terbutaline or due to infection of the fetus or a
20 raised core temperature of the fetus?
21 A. Not really. I don’t think anybody can
22 really tell that with any real accuracy. Obviously, if
23 the mother’s temperature is normal, that puts it more
24 in the realm of terbutaline being the cause. And if
25 the temperature is elevated, it could be a combination
60
1 of the two.
2 Q. Are there any treatments or measures that
3 the physician would do for his patient if he knew that
4 the fetus had a tachycardia due to either infection or
5 due to, say, an increase in core temperature?
6 A. Well, if the health care provider, like
7 Dr. D., knows that there is an amnionitis present,
8 then he obviously has to take a different approach to
9 therapy.
10 But just looking at a fetal heart rate in a
11 patient such as this would not allow him to do that
12 unless he did an amniocentesis to look for white cells
13 and bacteria in the amniotic cavity.
14 Q. Have you ever done such a thing?
15 A. Sure.
16 Q. How would you do — how would you even know
17 to do such a thing on your patient unless you knew your
18 patient had a fetal tachycardia?
19 A. Well, you can have babies that are infected
20 that don’t have fetal tachycardia, so that isn’t the
21 driving force.
22 There are doctors who at 34 weeks might do
23 an amniocentesis to look for signs of infection.
24 That’s not necessarily the standard of care. The
25 standard is to treat the premature labor, give
Leave a Reply
You must be logged in to post a comment.