CARLTON ruckman Matthew Kreuzer is in doubt for Carlton's clash with St Kilda next week after showing signs of concussion.

Kreuzer missed the second half of the Blues' 38-point win over the Brisbane Lions and it was initially believed he had been taken ill.

However, a club spokesman told reporters post-match that the inspirational big man would be monitored in coming days before a decision is made on his availability against the Saints.

TALKING POINTS: Carlton v Brisbane Lions

Kreuzer would be a big loss to a developing team that continues to surprise.

Almost inconceivably, after losing its opening four games, the reigning wooden-spooner has won six of its past seven games to be one of the best-performed teams in that period.

The Blues are now 6-5 and within striking distance of the top eight.

A victory against the Saints would provide great impetus for the rebuilding club as it heads to the bye.

WATCH: Weitering marks his territory

However, Carlton coach Brendon Bolton plans to keep his players' feet firmly on the ground.

"We can't look too far ahead into the bye because the bye's still a fortnight away," Bolton told reporters post-match.

"(We've) got to keep our equilibrium, get a plan together and then we've got to bring a more consistent effort against St Kilda."

That lack of consistency, which Bolton mentioned several times, the coach's major bugbear in his team's uninspiring win over the Lions.

WATCH: Brendon Bolton's full press conference

"After a six-day break (after defeating Geelong) and obviously losing 'Kreuz' for a fair chunk of that game, it's pleasing to get a result," he said.

"Probably fair to say we were a little inconsistent at times.

"We turned balls over that we'd like to use better. We've been building with our ball movement and we just got 100 points today, so that's a good sign …

"(Our) aim is to be defined by pressure. By and large, we have been defined by pressure. A little inconsistent today, however … 

"Only a few weeks ago, we got a fair touch-up by North, so we're still building in that phase."

With skipper Marc Murphy sidelined with an ankle injury and fellow midfield star Bryce Gibbs having just 12 possessions as he was comprehensively beaten by ex-teammate Mitch Robinson (25), Bolton was pleased the void was filled by other runners.

"It's important that others step up if that's the case, and Sam Kerridge carried a fair load today, Zach Tuohy provided some run off half-back for us, (Sam) Docherty continues to be consistent, particularly in the second half (Jacob) Weitering started to get going, so there's some little signs," he said.

"Some other little sprouts – (Daniel) Gorringe started to take some marks forward and Jed Lamb (three goals) continues to hit the scoreboard."

Asked how he was handling the praise that has been lavished upon him for sparking Carlton's unlikely revival, Bolton said: "Like a player – you can't get too high, you can't get too low … (Coaching) is about the sum of the parts and it's an us, not me, mentality in the coach's box."

Carlton forward Matt Wright lamented that his team wasn't able to put the Lions away after half-time, at one point allowing the visitors to get within 21 points in the third term.

"You take a win by that margin but we want to improve each week and we had a great opportunity to have a really good win today but unfortunately we let that slip," Wright told AFL.com.au.

"We'll review it pretty harshly, as we do every week, and look for ways to be better next week."